22112112201220 has 96 divisors (see below), whose sum is σ = 46883044454400. Its totient is φ = 8760045625344.

The previous prime is 22112112201139. The next prime is 22112112201233. The reversal of 22112112201220 is 2210221121122.

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, 1410293341 + ... + 1410309019.

It is an arithmetic number, because the mean of its divisors is an integer number (488365046400).

Almost surely, 2^{22112112201220} is an apocalyptic number.

22112112201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112112201220 is an abundant number, since it is smaller than the sum of its proper divisors (24770932253180).

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

22112112201220 is a wasteful number, since it uses less digits than its factorization.

22112112201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17477 (or 17475 counting only the distinct ones).

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

Adding to 22112112201220 its reverse (2210221121122), we get a palindrome (24322333322342).

The spelling of 22112112201220 in words is "twenty-two trillion, one hundred twelve billion, one hundred twelve million, two hundred one thousand, two hundred twenty".