22122210110020 has 48 divisors (see below), whose sum is σ = 50885570539440. Its totient is φ = 8041176571904.

The previous prime is 22122210109939. The next prime is 22122210110029. The reversal of 22122210110020 is 2001101222122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2024490739716 + 20097719370304 = 1422846^2 + 4483048^2 .

It is a super-2 number, since 2×22122210110020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22122210109976 and 22122210110003.

It is not an unprimeable number, because it can be changed into a prime (22122210110029) 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, 1121806069 + ... + 1121825788.

It is an arithmetic number, because the mean of its divisors is an integer number (1060116052905).

Almost surely, 2^{22122210110020} is an apocalyptic number.

22122210110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122210110020 is an abundant number, since it is smaller than the sum of its proper divisors (28763360429420).

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

22122210110020 is a wasteful number, since it uses less digits than its factorization.

22122210110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243631912 (or 2243631910 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22122210110020 its reverse (2001101222122), we get a palindrome (24123311332142).

The spelling of 22122210110020 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred ten million, one hundred ten thousand, twenty".