22101220100120 has 32 divisors (see below), whose sum is σ = 56831708829600. Its totient is φ = 7577561177088.

The previous prime is 22101220100111. The next prime is 22101220100123. The reversal of 22101220100120 is 2100102210122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 22101220100095 and 22101220100104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101220100123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39466464185 + ... + 39466464744.

It is an arithmetic number, because the mean of its divisors is an integer number (1775990900925).

Almost surely, 2^{22101220100120} is an apocalyptic number.

22101220100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101220100120 is an abundant number, since it is smaller than the sum of its proper divisors (34730488729480).

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

22101220100120 is a wasteful number, since it uses less digits than its factorization.

22101220100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78932928947 (or 78932928943 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22101220100120 its reverse (2100102210122), we get a palindrome (24201322310242).

The spelling of 22101220100120 in words is "twenty-two trillion, one hundred one billion, two hundred twenty million, one hundred thousand, one hundred twenty".