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1222202102012 = 22305550525503
BaseRepresentation
bin10001110010010000111…
…011000001000011111100
311022211201100212202021222
4101302100323001003330
5130011032214231022
62333245532412512
7154205210312303
oct21622073010374
94284640782258
101222202102012
11431373250a31
12178a55017138
138b33a27b988
144322507743a
1521bd3e3b242
hex11c90ec10fc

1222202102012 has 6 divisors (see below), whose sum is σ = 2138853678528. Its totient is φ = 611101051004.

The previous prime is 1222202101997. The next prime is 1222202102039. The reversal of 1222202102012 is 2102012022221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152775262748 + ... + 152775262755.

It is an arithmetic number, because the mean of its divisors is an integer number (356475613088).

Almost surely, 21222202102012 is an apocalyptic number.

It is an amenable number.

1222202102012 is a deficient number, since it is larger than the sum of its proper divisors (916651576516).

1222202102012 is a wasteful number, since it uses less digits than its factorization.

1222202102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305550525507 (or 305550525505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222202102012 its reverse (2102012022221), we get a palindrome (3324214124233).

The spelling of 1222202102012 in words is "one trillion, two hundred twenty-two billion, two hundred two million, one hundred two thousand, twelve".

Divisors: 1 2 4 305550525503 611101051006 1222202102012