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1222052052 = 223139678101
BaseRepresentation
bin100100011010111…
…0000100011010100
310011011111200021010
41020311300203110
510000321131202
6321132452220
742166161654
oct11065604324
93134450233
101222052052
115778a8881
122a131a070
13166245930
14b8430364
157244476c
hex48d708d4

1222052052 has 48 divisors (see below), whose sum is σ = 3074352512. Its totient is φ = 375580800.

The previous prime is 1222052033. The next prime is 1222052063. The reversal of 1222052052 is 2502502221.

It is a super-2 number, since 2×12220520522 = 2986822435594821408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146802 + ... + 154902.

Almost surely, 21222052052 is an apocalyptic number.

1222052052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222052052 is an abundant number, since it is smaller than the sum of its proper divisors (1852300460).

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

1222052052 is a wasteful number, since it uses less digits than its factorization.

1222052052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088 (or 9086 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1222052052 is about 34957.8610901754. The cubic root of 1222052052 is about 1069.1284870747.

Adding to 1222052052 its reverse (2502502221), we get a palindrome (3724554273).

The spelling of 1222052052 in words is "one billion, two hundred twenty-two million, fifty-two thousand, fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 967 1934 2901 3868 5802 8101 11604 12571 16202 24303 25142 32404 37713 48606 50284 75426 97212 105313 150852 210626 315939 421252 631878 1263756 7833667 15667334 23501001 31334668 47002002 94004004 101837671 203675342 305513013 407350684 611026026 1222052052