22020400202020 has 48 divisors (see below), whose sum is σ = 50448379455936. Its totient is φ = 8007157232000.

The previous prime is 22020400201999. The next prime is 22020400202027. The reversal of 22020400202020 is 2020200402022.

It is a junction number, because it is equal to n+sod(n) for n = 22020400201985 and 22020400202003.

It is not an unprimeable number, because it can be changed into a prime (22020400202027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5197710 + ... + 8429530.

It is an arithmetic number, because the mean of its divisors is an integer number (1051007905332).

Almost surely, 2^{22020400202020} is an apocalyptic number.

22020400202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020400202020 is an abundant number, since it is smaller than the sum of its proper divisors (28427979253916).

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

22020400202020 is a wasteful number, since it uses less digits than its factorization.

22020400202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262812 (or 3262810 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22020400202020 its reverse (2020200402022), we get a palindrome (24040600604042).

The spelling of 22020400202020 in words is "twenty-two trillion, twenty billion, four hundred million, two hundred two thousand, twenty".