22020002000028 has 72 divisors (see below), whose sum is σ = 57045361900800. Its totient is φ = 7159774860576.

The previous prime is 22020002000021. The next prime is 22020002000069. The reversal of 22020002000028 is 82000020002022.

It is a super-2 number, since 2×22020002000028² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020002000021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46406218 + ... + 46878321.

Almost surely, 2^{22020002000028} is an apocalyptic number.

It is an amenable number.

22020002000028 is an abundant number, since it is smaller than the sum of its proper divisors (35025359900772).

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

22020002000028 is a wasteful number, since it uses less digits than its factorization.

22020002000028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93284711 (or 93284706 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The spelling of 22020002000028 in words is "twenty-two trillion, twenty billion, two million, twenty-eight", and thus it is an aban number and an uban number.