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1222113310 = 251123121051
BaseRepresentation
bin100100011010111…
…1111100000011110
310011011121210021221
41020311333200132
510000330111220
6321134043554
742166535365
oct11065774036
93134553257
101222113310
1157793a900
122a13495ba
13166267792
14b84487dc
15724579aa
hex48d7f81e

1222113310 has 72 divisors (see below), whose sum is σ = 2500858584. Its totient is φ = 429660000.

The previous prime is 1222113301. The next prime is 1222113311. The reversal of 1222113310 is 133112221.

It is a super-2 number, since 2×12221133102 = 2987121884958312200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222113311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1162285 + ... + 1163335.

It is an arithmetic number, because the mean of its divisors is an integer number (34734147).

Almost surely, 21222113310 is an apocalyptic number.

1222113310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222113310 is an abundant number, since it is smaller than the sum of its proper divisors (1278745274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222113310 is a wasteful number, since it uses less digits than its factorization.

1222113310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1222113310 is about 34958.7372483618. The cubic root of 1222113310 is about 1069.1463509014.

Adding to 1222113310 its reverse (133112221), we get a palindrome (1355225531).

It can be divided in two parts, 122211 and 3310, that added together give a palindrome (125521).

The spelling of 1222113310 in words is "one billion, two hundred twenty-two million, one hundred thirteen thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 31 55 62 110 121 155 242 310 341 605 682 961 1051 1210 1705 1922 2102 3410 3751 4805 5255 7502 9610 10510 10571 11561 18755 21142 23122 32581 37510 52855 57805 65162 105710 115610 116281 127171 162905 232562 254342 325810 358391 581405 635855 716782 1010011 1162810 1271710 1791955 2020022 3583910 3942301 5050055 7884602 10100110 11110121 19711505 22220242 39423010 55550605 111101210 122211331 244422662 611056655 1222113310