21120120211095 has 32 divisors (see below), whose sum is σ = 37547154432000. Its totient is φ = 11263981895712.

The previous prime is 21120120211087. The next prime is 21120120211181. The reversal of 21120120211095 is 59011202102112.

It is not a de Polignac number, because 21120120211095 - 2³ = 21120120211087 is a prime.

It is a super-2 number, since 2×21120120211095² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21000514 + ... + 21983216.

It is an arithmetic number, because the mean of its divisors is an integer number (1173348576000).

Almost surely, 2^{21120120211095} is an apocalyptic number.

21120120211095 is a deficient number, since it is larger than the sum of its proper divisors (16427034220905).

21120120211095 is a wasteful number, since it uses less digits than its factorization.

21120120211095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141916 (or 1141910 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 21120120211095 in words is "twenty-one trillion, one hundred twenty billion, one hundred twenty million, two hundred eleven thousand, ninety-five".