22112221010020 has 48 divisors (see below), whose sum is σ = 46638723801600. Its totient is φ = 8806224291200.

The previous prime is 22112221009981. The next prime is 22112221010057. The reversal of 22112221010020 is 2001012221122.

It is a happy number.

It is a super-3 number, since 3×22112221010020³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22112221009976 and 22112221010003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25145526 + ... + 26010034.

It is an arithmetic number, because the mean of its divisors is an integer number (971640079200).

Almost surely, 2^{22112221010020} is an apocalyptic number.

22112221010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112221010020 is an abundant number, since it is smaller than the sum of its proper divisors (24526502791580).

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

22112221010020 is a wasteful number, since it uses less digits than its factorization.

22112221010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870108 (or 870106 counting only the distinct ones).

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

Adding to 22112221010020 its reverse (2001012221122), we get a palindrome (24113233231142).

The spelling of 22112221010020 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, ten thousand, twenty".