212021111130 has 32 divisors (see below), whose sum is σ = 508865583744. Its totient is φ = 56537305536.

The previous prime is 212021111123. The next prime is 212021111149. The reversal of 212021111130 is 31111120212.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1209832 + ... + 1373948.

It is an arithmetic number, because the mean of its divisors is an integer number (15902049492).

Almost surely, 2^212021111130 is an apocalyptic number.

212021111130 is an abundant number, since it is smaller than the sum of its proper divisors (296844472614).

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

212021111130 is a wasteful number, since it uses less digits than its factorization.

212021111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207190.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212021111130 its reverse (31111120212), we get a palindrome (243132231342).

The spelling of 212021111130 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, one hundred thirty".