22122002112020 has 12 divisors (see below), whose sum is σ = 46456204435284. Its totient is φ = 8848800844800.

The previous prime is 22122002112013. The next prime is 22122002112061. The reversal of 22122002112020 is 2021120022122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3196822417156 + 18925179694864 = 1787966^2 + 4350308^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22122002112020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553050052781 + ... + 553050052820.

It is an arithmetic number, because the mean of its divisors is an integer number (3871350369607).

Almost surely, 2^{22122002112020} is an apocalyptic number.

22122002112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122002112020 is an abundant number, since it is smaller than the sum of its proper divisors (24334202323264).

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

22122002112020 is a wasteful number, since it uses less digits than its factorization.

22122002112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106100105610 (or 1106100105608 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22122002112020 its reverse (2021120022122), we get a palindrome (24143122134142).

The spelling of 22122002112020 in words is "twenty-two trillion, one hundred twenty-two billion, two million, one hundred twelve thousand, twenty".