22101120100020 has 72 divisors (see below), whose sum is σ = 67009549967136. Its totient is φ = 5440275714432.

The previous prime is 22101120099983. The next prime is 22101120100069. The reversal of 22101120100020 is 2000102110122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22101120099969 and 22101120100005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1089788682 + ... + 1089808961.

It is an arithmetic number, because the mean of its divisors is an integer number (930688193988).

Almost surely, 2^{22101120100020} is an apocalyptic number.

22101120100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101120100020 is an abundant number, since it is smaller than the sum of its proper divisors (44908429867116).

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

22101120100020 is a wasteful number, since it uses less digits than its factorization.

22101120100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179597681 (or 2179597666 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22101120100020 its reverse (2000102110122), we get a palindrome (24101222210142).

The spelling of 22101120100020 in words is "twenty-two trillion, one hundred one billion, one hundred twenty million, one hundred thousand, twenty".