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1222011222010 = 251019901122201
BaseRepresentation
bin10001110010000101100…
…010110111011111111010
311022211020001201001011021
4101302011202313133322
5130010134333101020
62333214553253054
7154200402000655
oct21620542673772
94284201631137
101222011222010
11431285527a67
12178a0110418a
138b309868827
144320798a89c
1521bc22d41aa
hex11c858b77fa

1222011222010 has 32 divisors (see below), whose sum is σ = 2221641158544. Its totient is φ = 483912000000.

The previous prime is 1222011222007. The next prime is 1222011222011. The reversal of 1222011222010 is 102221102221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1216986255241 + 5024966769 = 1103171^2 + 70887^2 .

It is a super-2 number, since 2×12220112220102 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222011222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9938910 + ... + 10061110.

Almost surely, 21222011222010 is an apocalyptic number.

1222011222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222011222010 is a deficient number, since it is larger than the sum of its proper divisors (999629936534).

1222011222010 is a wasteful number, since it uses less digits than its factorization.

1222011222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132210.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222011222010 its reverse (102221102221), we get a palindrome (1324232324231).

The spelling of 1222011222010 in words is "one trillion, two hundred twenty-two billion, eleven million, two hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 101 202 505 1010 9901 19802 49505 99010 122201 244402 611005 1000001 1222010 2000002 5000005 10000010 12342301 24684602 61711505 123423010 1209912101 2419824202 6049560505 12099121010 122201122201 244402244402 611005611005 1222011222010