22101220200120 has 64 divisors (see below), whose sum is σ = 66567818701440. Its totient is φ = 5870178000000.

The previous prime is 22101220200119. The next prime is 22101220200127. The reversal of 22101220200120 is 2100202210122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22101220200120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101220200127) 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, 366856006 + ... + 366916245.

It is an arithmetic number, because the mean of its divisors is an integer number (1040122167210).

Almost surely, 2^{22101220200120} is an apocalyptic number.

22101220200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101220200120 is an abundant number, since it is smaller than the sum of its proper divisors (44466598501320).

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

22101220200120 is a wasteful number, since it uses less digits than its factorization.

22101220200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733772516 (or 733772512 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22101220200120 its reverse (2100202210122), we get a palindrome (24201422410242).

The spelling of 22101220200120 in words is "twenty-two trillion, one hundred one billion, two hundred twenty million, two hundred thousand, one hundred twenty".