22100111012220 has 48 divisors (see below), whose sum is σ = 61882911904128. Its totient is φ = 5893115215680.

The previous prime is 22100111012209. The next prime is 22100111012299. The reversal of 22100111012220 is 2221011100122.

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 22100111012220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6299746 + ... + 9158985.

It is an arithmetic number, because the mean of its divisors is an integer number (1289227331336).

Almost surely, 2^{22100111012220} is an apocalyptic number.

22100111012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100111012220 is an abundant number, since it is smaller than the sum of its proper divisors (39782800891908).

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

22100111012220 is a wasteful number, since it uses less digits than its factorization.

22100111012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15482570 (or 15482568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22100111012220 its reverse (2221011100122), we get a palindrome (24321122112342).

The spelling of 22100111012220 in words is "twenty-two trillion, one hundred billion, one hundred eleven million, twelve thousand, two hundred twenty".