212120001012 has 48 divisors (see below), whose sum is σ = 500033544192. Its totient is φ = 69981191520.

The previous prime is 212120000999. The next prime is 212120001031. The reversal of 212120001012 is 210100021212.

212120001012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 1325133 + ... + 1476555.

It is an arithmetic number, because the mean of its divisors is an integer number (10417365504).

Almost surely, 2^212120001012 is an apocalyptic number.

It is an amenable number.

212120001012 is an abundant number, since it is smaller than the sum of its proper divisors (287913543180).

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

212120001012 is a wasteful number, since it uses less digits than its factorization.

212120001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152628 (or 152626 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212120001012 its reverse (210100021212), we get a palindrome (422220022224).

The spelling of 212120001012 in words is "two hundred twelve billion, one hundred twenty million, one thousand, twelve".