22101000202020 has 48 divisors (see below), whose sum is σ = 61903644042240. Its totient is φ = 5891614960896.

The previous prime is 22101000201991. The next prime is 22101000202033. The reversal of 22101000202020 is 2020200010122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22101000201987 and 22101000202005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61854532 + ... + 62210811.

It is an arithmetic number, because the mean of its divisors is an integer number (1289659250880).

Almost surely, 2^{22101000202020} is an apocalyptic number.

22101000202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101000202020 is an abundant number, since it is smaller than the sum of its proper divisors (39802643840220).

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

22101000202020 is a wasteful number, since it uses less digits than its factorization.

22101000202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124068324 (or 124068322 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22101000202020 its reverse (2020200010122), we get a palindrome (24121200212142).

The spelling of 22101000202020 in words is "twenty-two trillion, one hundred one billion, two hundred two thousand, twenty".