21152211165132 has 48 divisors (see below), whose sum is σ = 52355000269152. Its totient is φ = 6623721630720.

The previous prime is 21152211165119. The next prime is 21152211165143. The reversal of 21152211165132 is 23156111225112.

It is a junction number, because it is equal to n+sod(n) for n = 21152211165093 and 21152211165102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95718943 + ... + 95939670.

It is an arithmetic number, because the mean of its divisors is an integer number (1090729172274).

Almost surely, 2^{21152211165132} is an apocalyptic number.

It is an amenable number.

21152211165132 is an abundant number, since it is smaller than the sum of its proper divisors (31202789104020).

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

21152211165132 is a wasteful number, since it uses less digits than its factorization.

21152211165132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191659178 (or 191659176 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The spelling of 21152211165132 in words is "twenty-one trillion, one hundred fifty-two billion, two hundred eleven million, one hundred sixty-five thousand, one hundred thirty-two".