220111010121212 has 24 divisors (see below), whose sum is σ = 440389979954400. Its totient is φ = 94297298685120.

The previous prime is 220111010121103. The next prime is 220111010121227. The reversal of 220111010121212 is 212121010111022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499565587 + ... + 1499712362.

It is an arithmetic number, because the mean of its divisors is an integer number (18349582498100).

Almost surely, 2^{220111010121212} is an apocalyptic number.

It is an amenable number.

220111010121212 is an abundant number, since it is smaller than the sum of its proper divisors (220278969833188).

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

220111010121212 is a wasteful number, since it uses less digits than its factorization.

220111010121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999280581 (or 2999280579 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 220111010121212 its reverse (212121010111022), we get a palindrome (432232020232234).

The spelling of 220111010121212 in words is "two hundred twenty trillion, one hundred eleven billion, ten million, one hundred twenty-one thousand, two hundred twelve".