22102002202020 has 96 divisors (see below), whose sum is σ = 66647224127232. Its totient is φ = 5440395975168.

The previous prime is 22102002202019. The next prime is 22102002202057. The reversal of 22102002202020 is 2020220020122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49990849 + ... + 50431031.

It is an arithmetic number, because the mean of its divisors is an integer number (694241917992).

Almost surely, 2^{22102002202020} is an apocalyptic number.

22102002202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102002202020 is an abundant number, since it is smaller than the sum of its proper divisors (44545221925212).

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

22102002202020 is a wasteful number, since it uses less digits than its factorization.

22102002202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504581 (or 504579 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22102002202020 its reverse (2020220020122), we get a palindrome (24122222222142).

The spelling of 22102002202020 in words is "twenty-two trillion, one hundred two billion, two million, two hundred two thousand, twenty".