22020402112 has 56 divisors (see below), whose sum is σ = 45724502912. Its totient is φ = 10509004800.

The previous prime is 22020402097. The next prime is 22020402133. The reversal of 22020402112 is 21120402022.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68812 + ... + 220852.

Almost surely, 2^22020402112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22020402112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22862251456).

22020402112 is an abundant number, since it is smaller than the sum of its proper divisors (23704100800).

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

22020402112 is a wasteful number, since it uses less digits than its factorization.

22020402112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152157 (or 152147 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22020402112 its reverse (21120402022), we get a palindrome (43140804134).

The spelling of 22020402112 in words is "twenty-two billion, twenty million, four hundred two thousand, one hundred twelve".