2156101122436 has 12 divisors (see below), whose sum is σ = 3971765225680. Its totient is φ = 1021311057960.

The previous prime is 2156101122419. The next prime is 2156101122473. The reversal of 2156101122436 is 6342211016512.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14184875730 + ... + 14184875881.

Almost surely, 2^{2156101122436} is an apocalyptic number.

It is an amenable number.

2156101122436 is a deficient number, since it is larger than the sum of its proper divisors (1815664103244).

2156101122436 is a wasteful number, since it uses less digits than its factorization.

2156101122436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28369751634 (or 28369751632 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 2156101122436 its reverse (6342211016512), we get a palindrome (8498312138948).

The spelling of 2156101122436 in words is "two trillion, one hundred fifty-six billion, one hundred one million, one hundred twenty-two thousand, four hundred thirty-six".