220111122100212 has 144 divisors (see below), whose sum is σ = 636769850371200. Its totient is φ = 62800607750400.

The previous prime is 220111122100201. The next prime is 220111122100213. The reversal of 220111122100212 is 212001221111022.

220111122100212 is a `hidden beast` number, since 220 + 1 + 1 + 11 + 221 + 0 + 0 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111122100213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517465714 + ... + 517890902.

It is an arithmetic number, because the mean of its divisors is an integer number (4422012849800).

Almost surely, 2^{220111122100212} is an apocalyptic number.

It is an amenable number.

220111122100212 is an abundant number, since it is smaller than the sum of its proper divisors (416658728270988).

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

220111122100212 is a wasteful number, since it uses less digits than its factorization.

220111122100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428086 (or 428081 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220111122100212 its reverse (212001221111022), we get a palindrome (432112343211234).

The spelling of 220111122100212 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-two million, one hundred thousand, two hundred twelve".