22112111001020 has 12 divisors (see below), whose sum is σ = 46435433102184. Its totient is φ = 8844844400400.

The previous prime is 22112111000999. The next prime is 22112111001031. The reversal of 22112111001020 is 2010011121122.

It is a junction number, because it is equal to n+sod(n) for n = 22112111000986 and 22112111001004.

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, 552802775006 + ... + 552802775045.

It is an arithmetic number, because the mean of its divisors is an integer number (3869619425182).

Almost surely, 2^{22112111001020} is an apocalyptic number.

22112111001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112111001020 is an abundant number, since it is smaller than the sum of its proper divisors (24323322101164).

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

22112111001020 is a wasteful number, since it uses less digits than its factorization.

22112111001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105605550060 (or 1105605550058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22112111001020 its reverse (2010011121122), we get a palindrome (24122122122142).

The spelling of 22112111001020 in words is "twenty-two trillion, one hundred twelve billion, one hundred eleven million, one thousand, twenty".