20112211112022 has 24 divisors (see below), whose sum is σ = 43577621251320. Its totient is φ = 6703891318080.

The previous prime is 20112211112017. The next prime is 20112211112041. The reversal of 20112211112022 is 22021111221102.

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 = 20112211111986 and 20112211112004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14227504 + ... + 15577107.

It is an arithmetic number, because the mean of its divisors is an integer number (1815734218805).

Almost surely, 2^{20112211112022} is an apocalyptic number.

20112211112022 is an abundant number, since it is smaller than the sum of its proper divisors (23465410139298).

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

20112211112022 is a wasteful number, since it uses less digits than its factorization.

20112211112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29842108 (or 29842105 counting only the distinct ones).

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

Adding to 20112211112022 its reverse (22021111221102), we get a palindrome (42133322333124).

The spelling of 20112211112022 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, one hundred twelve thousand, twenty-two".