21120210211232 has 72 divisors (see below), whose sum is σ = 47418392982240. Its totient is φ = 9182700010880.

The previous prime is 21120210211189. The next prime is 21120210211267. The reversal of 21120210211232 is 23211201202112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56525132 + ... + 56897547.

It is an arithmetic number, because the mean of its divisors is an integer number (658588791420).

Almost surely, 2^{21120210211232} is an apocalyptic number.

21120210211232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21120210211232 is an abundant number, since it is smaller than the sum of its proper divisors (26298182771008).

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

21120210211232 is a wasteful number, since it uses less digits than its factorization.

21120210211232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113422746 (or 113422715 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21120210211232 its reverse (23211201202112), we get a palindrome (44331411413344).

The spelling of 21120210211232 in words is "twenty-one trillion, one hundred twenty billion, two hundred ten million, two hundred eleven thousand, two hundred thirty-two".