22000020402 has 16 divisors (see below), whose sum is σ = 45189231552. Its totient is φ = 7135141680.

The previous prime is 22000020391. The next prime is 22000020437. The reversal of 22000020402 is 20402000022.

It is a happy 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, 49549374 + ... + 49549817.

It is an arithmetic number, because the mean of its divisors is an integer number (2824326972).

Almost surely, 2^22000020402 is an apocalyptic number.

22000020402 is an abundant number, since it is smaller than the sum of its proper divisors (23189211150).

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

22000020402 is a wasteful number, since it uses less digits than its factorization.

22000020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99099233.

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

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

The spelling of 22000020402 in words is "twenty-two billion, twenty thousand, four hundred two".