22101212120120 has 64 divisors (see below), whose sum is σ = 57075601302720. Its totient is φ = 7545036708864.

The previous prime is 22101212120107. The next prime is 22101212120123. The reversal of 22101212120120 is 2102121210122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101212120123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169318667 + ... + 169449146.

It is an arithmetic number, because the mean of its divisors is an integer number (891806270355).

Almost surely, 2^{22101212120120} is an apocalyptic number.

22101212120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101212120120 is an abundant number, since it is smaller than the sum of its proper divisors (34974389182600).

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

22101212120120 is a wasteful number, since it uses less digits than its factorization.

22101212120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338768064 (or 338768060 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22101212120120 its reverse (2102121210122), we get a palindrome (24203333330242).

The spelling of 22101212120120 in words is "twenty-two trillion, one hundred one billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty".