22100111102020 has 384 divisors, whose sum is σ = 57958427197440. Its totient is φ = 6914760652800.

The previous prime is 22100111102011. The next prime is 22100111102101. The reversal of 22100111102020 is 2020111100122.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1680482445 + ... + 1680495595.

It is an arithmetic number, because the mean of its divisors is an integer number (150933404160).

Almost surely, 2^{22100111102020} is an apocalyptic number.

22100111102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22100111102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28979213598720).

22100111102020 is an abundant number, since it is smaller than the sum of its proper divisors (35858316095420).

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

22100111102020 is a wasteful number, since it uses less digits than its factorization.

22100111102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13515 (or 13513 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22100111102020 its reverse (2020111100122), we get a palindrome (24120222202142).

The spelling of 22100111102020 in words is "twenty-two trillion, one hundred billion, one hundred eleven million, one hundred two thousand, twenty".