22021222020020 has 48 divisors (see below), whose sum is σ = 47021625560448. Its totient is φ = 8661142734720.

The previous prime is 22021222020001. The next prime is 22021222020023. The reversal of 22021222020020 is 2002022212022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021222020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20258414 + ... + 21317733.

It is an arithmetic number, because the mean of its divisors is an integer number (979617199176).

Almost surely, 2^{22021222020020} is an apocalyptic number.

22021222020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021222020020 is an abundant number, since it is smaller than the sum of its proper divisors (25000403540428).

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

22021222020020 is a wasteful number, since it uses less digits than its factorization.

22021222020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41576600 (or 41576598 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22021222020020 its reverse (2002022212022), we get a palindrome (24023244232042).

The spelling of 22021222020020 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-two million, twenty thousand, twenty".