213122032112 has 20 divisors (see below), whose sum is σ = 450462477336. Its totient is φ = 96873650880.

The previous prime is 213122032069. The next prime is 213122032133. The reversal of 213122032112 is 211230221312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605460143 + ... + 605460494.

Almost surely, 2^213122032112 is an apocalyptic number.

213122032112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213122032112 is an abundant number, since it is smaller than the sum of its proper divisors (237340445224).

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

213122032112 is a wasteful number, since it uses less digits than its factorization.

213122032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210920656 (or 1210920650 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213122032112 its reverse (211230221312), we get a palindrome (424352253424).

The spelling of 213122032112 in words is "two hundred thirteen billion, one hundred twenty-two million, thirty-two thousand, one hundred twelve".