212122211331212 has 96 divisors (see below), whose sum is σ = 457154956137600. Its totient is φ = 83865735106560.

The previous prime is 212122211331119. The next prime is 212122211331257. The reversal of 212122211331212 is 212133112221212.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 5560341914 + ... + 5560380062.

It is an arithmetic number, because the mean of its divisors is an integer number (4762030793100).

Almost surely, 2^{212122211331212} is an apocalyptic number.

It is an amenable number.

212122211331212 is an abundant number, since it is smaller than the sum of its proper divisors (245032744806388).

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

212122211331212 is a wasteful number, since it uses less digits than its factorization.

212122211331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47011 (or 47009 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

Adding to 212122211331212 its reverse (212133112221212), we get a palindrome (424255323552424).

The spelling of 212122211331212 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred eleven million, three hundred thirty-one thousand, two hundred twelve".