20402000022 has 16 divisors (see below), whose sum is σ = 41906811312. Its totient is φ = 6616864800.

The previous prime is 20401999997. The next prime is 20402000053. The reversal of 20402000022 is 22000020402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20401999971 and 20402000007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45950229 + ... + 45950672.

It is an arithmetic number, because the mean of its divisors is an integer number (2619175707).

Almost surely, 2^20402000022 is an apocalyptic number.

20402000022 is an abundant number, since it is smaller than the sum of its proper divisors (21504811290).

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

20402000022 is a wasteful number, since it uses less digits than its factorization.

20402000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91900943.

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20402000022 its reverse (22000020402), we get a palindrome (42402020424).

The spelling of 20402000022 in words is "twenty billion, four hundred two million, twenty-two", and thus it is an aban number.