12220022122021 has 8 divisors (see below), whose sum is σ = 13968834161984. Its totient is φ = 10471983730560.

The previous prime is 12220022121961. The next prime is 12220022122043. The reversal of 12220022122021 is 12022122002221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220022122021 - 2²⁷ = 12219887904293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220022122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220022122051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193378275 + ... + 193441456.

It is an arithmetic number, because the mean of its divisors is an integer number (1746104270248).

Almost surely, 2^{12220022122021} is an apocalyptic number.

It is an amenable number.

12220022122021 is a deficient number, since it is larger than the sum of its proper divisors (1748812039963).

12220022122021 is an equidigital number, since it uses as much as digits as its factorization.

12220022122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386824251.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12220022122021 its reverse (12022122002221), we get a palindrome (24242144124242).

The spelling of 12220022122021 in words is "twelve trillion, two hundred twenty billion, twenty-two million, one hundred twenty-two thousand, twenty-one".