12210021132 has 24 divisors (see below), whose sum is σ = 29728747776. Its totient is φ = 3893050128.

The previous prime is 12210021073. The next prime is 12210021151. The reversal of 12210021132 is 23112001221.

It is a super-2 number, since 2×12210021132² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22119328 + ... + 22119879.

It is an arithmetic number, because the mean of its divisors is an integer number (1238697824).

Almost surely, 2^12210021132 is an apocalyptic number.

12210021132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210021132 is an abundant number, since it is smaller than the sum of its proper divisors (17518726644).

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

12210021132 is a wasteful number, since it uses less digits than its factorization.

12210021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44239237 (or 44239235 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12210021132 its reverse (23112001221), we get a palindrome (35322022353).

The spelling of 12210021132 in words is "twelve billion, two hundred ten million, twenty-one thousand, one hundred thirty-two".