20212112111022 has 48 divisors (see below), whose sum is σ = 47336916987360. Its totient is φ = 6195992026176.

The previous prime is 20212112111003. The next prime is 20212112111027. The reversal of 20212112111022 is 22011121121202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20212112110986 and 20212112111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212112111027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160488258 + ... + 160614149.

It is an arithmetic number, because the mean of its divisors is an integer number (986185770570).

Almost surely, 2^{20212112111022} is an apocalyptic number.

20212112111022 is an abundant number, since it is smaller than the sum of its proper divisors (27124804876338).

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

20212112111022 is a wasteful number, since it uses less digits than its factorization.

20212112111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321102697 (or 321102694 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20212112111022 its reverse (22011121121202), we get a palindrome (42223233232224).

The spelling of 20212112111022 in words is "twenty trillion, two hundred twelve billion, one hundred twelve million, one hundred eleven thousand, twenty-two".