212220012020212 has 72 divisors (see below), whose sum is σ = 451668144916800. Its totient is φ = 85450905793536.

The previous prime is 212220012020153. The next prime is 212220012020221. The reversal of 212220012020212 is 212020210022212.

It is a self number, because there is not a number n which added to its sum of digits gives 212220012020212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18441262 + ... + 27649957.

It is an arithmetic number, because the mean of its divisors is an integer number (6273168679400).

Almost surely, 2^{212220012020212} is an apocalyptic number.

It is an amenable number.

212220012020212 is an abundant number, since it is smaller than the sum of its proper divisors (239448132896588).

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

212220012020212 is a wasteful number, since it uses less digits than its factorization.

212220012020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46091833 (or 46091814 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212220012020212 its reverse (212020210022212), we get a palindrome (424240222042424).

The spelling of 212220012020212 in words is "two hundred twelve trillion, two hundred twenty billion, twelve million, twenty thousand, two hundred twelve".