20201000022 has 80 divisors (see below), whose sum is σ = 53400517632. Its totient is φ = 5585520240.

The previous prime is 20201000009. The next prime is 20201000047. The reversal of 20201000022 is 22000010202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20200999968 and 20201000013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 252168 + ... + 322475.

Almost surely, 2^20201000022 is an apocalyptic number.

20201000022 is an abundant number, since it is smaller than the sum of its proper divisors (33199517610).

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

20201000022 is a wasteful number, since it uses less digits than its factorization.

20201000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574695 (or 574686 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20201000022 its reverse (22000010202), we get a palindrome (42201010224).

The spelling of 20201000022 in words is "twenty billion, two hundred one million, twenty-two", and thus it is an aban number.