12220113122021 has 8 divisors (see below), whose sum is σ = 13970481866304. Its totient is φ = 10470903952320.

The previous prime is 12220113122017. The next prime is 12220113122029. The reversal of 12220113122021 is 12022131102221.

12220113122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12220113122021 - 2² = 12220113122017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220113121984 and 12220113122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220113122029) 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, 289871060 + ... + 289913213.

It is an arithmetic number, because the mean of its divisors is an integer number (1746310233288).

Almost surely, 2^{12220113122021} is an apocalyptic number.

It is an amenable number.

12220113122021 is a deficient number, since it is larger than the sum of its proper divisors (1750368744283).

12220113122021 is an equidigital number, since it uses as much as digits as its factorization.

12220113122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579787291.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12220113122021 its reverse (12022131102221), we get a palindrome (24242244224242).

The spelling of 12220113122021 in words is "twelve trillion, two hundred twenty billion, one hundred thirteen million, one hundred twenty-two thousand, twenty-one".