22021202002020 has 48 divisors (see below), whose sum is σ = 66402393731520. Its totient is φ = 5420603569536.

The previous prime is 22021202001989. The next prime is 22021202002021. The reversal of 22021202002020 is 2020020212022.

It is a super-2 number, since 2×22021202002020² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22021202002021) 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, 14116154350 + ... + 14116155909.

It is an arithmetic number, because the mean of its divisors is an integer number (1383383202740).

Almost surely, 2^{22021202002020} is an apocalyptic number.

22021202002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021202002020 is an abundant number, since it is smaller than the sum of its proper divisors (44381191729500).

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

22021202002020 is a wasteful number, since it uses less digits than its factorization.

22021202002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28232310284 (or 28232310282 counting only the distinct ones).

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

Adding to 22021202002020 its reverse (2020020212022), we get a palindrome (24041222214042).

The spelling of 22021202002020 in words is "twenty-two trillion, twenty-one billion, two hundred two million, two thousand, twenty".