220121012120212 has 48 divisors (see below), whose sum is σ = 441325139472000. Its totient is φ = 94105487545344.

The previous prime is 220121012120171. The next prime is 220121012120263. The reversal of 220121012120212 is 212021210121022.

It is a self number, because there is not a number n which added to its sum of digits gives 220121012120212.

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, 1134670239 + ... + 1134864217.

It is an arithmetic number, because the mean of its divisors is an integer number (9194273739000).

Almost surely, 2^{220121012120212} is an apocalyptic number.

It is an amenable number.

220121012120212 is an abundant number, since it is smaller than the sum of its proper divisors (221204127351788).

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

220121012120212 is a wasteful number, since it uses less digits than its factorization.

220121012120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293488 (or 293486 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220121012120212 its reverse (212021210121022), we get a palindrome (432142222241234).

The spelling of 220121012120212 in words is "two hundred twenty trillion, one hundred twenty-one billion, twelve million, one hundred twenty thousand, two hundred twelve".