22212220212120 has 64 divisors (see below), whose sum is σ = 67766095584000. Its totient is φ = 5822864505728.

The previous prime is 22212220212109. The next prime is 22212220212227. The reversal of 22212220212120 is 2121202221222.

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, 1568652540 + ... + 1568666699.

It is an arithmetic number, because the mean of its divisors is an integer number (1058845243500).

Almost surely, 2^{22212220212120} is an apocalyptic number.

22212220212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212220212120 is an abundant number, since it is smaller than the sum of its proper divisors (45553875371880).

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

22212220212120 is a wasteful number, since it uses less digits than its factorization.

22212220212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137319312 (or 3137319308 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22212220212120 its reverse (2121202221222), we get a palindrome (24333422433342).

The spelling of 22212220212120 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty".