12220112112021 has 24 divisors (see below), whose sum is σ = 19619253759456. Its totient is φ = 7266390275040.

The previous prime is 12220112111983. The next prime is 12220112112031. The reversal of 12220112112021 is 12021121102221.

12220112112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12220112112021 - 2⁹ = 12220112111509 is a prime.

It is a super-2 number, since 2×12220112112021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220112111985 and 12220112112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220112112031) 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, 1164480375 + ... + 1164490868.

It is an arithmetic number, because the mean of its divisors is an integer number (817468906644).

Almost surely, 2^{12220112112021} is an apocalyptic number.

12220112112021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12220112112021 is a deficient number, since it is larger than the sum of its proper divisors (7399141647435).

12220112112021 is a wasteful number, since it uses less digits than its factorization.

12220112112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328971313 (or 2328971310 counting only the distinct ones).

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

Adding to 12220112112021 its reverse (12021121102221), we get a palindrome (24241233214242).

The spelling of 12220112112021 in words is "twelve trillion, two hundred twenty billion, one hundred twelve million, one hundred twelve thousand, twenty-one".