212013021030 has 64 divisors (see below), whose sum is σ = 511887237120. Its totient is φ = 56198113664.

The previous prime is 212013021029. The next prime is 212013021053. The reversal of 212013021030 is 30120310212.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3967147 + ... + 4020233.

It is an arithmetic number, because the mean of its divisors is an integer number (7998238080).

Almost surely, 2^212013021030 is an apocalyptic number.

212013021030 is an abundant number, since it is smaller than the sum of its proper divisors (299874216090).

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

212013021030 is a wasteful number, since it uses less digits than its factorization.

212013021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53893.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212013021030 its reverse (30120310212), we get a palindrome (242133331242).

The spelling of 212013021030 in words is "two hundred twelve billion, thirteen million, twenty-one thousand, thirty".