12220122021 has 8 divisors (see below), whose sum is σ = 16304144544. Its totient is φ = 8141423760.

The previous prime is 12220122001. The next prime is 12220122107. The reversal of 12220122021 is 12022102221.

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

It is not a de Polignac number, because 12220122021 - 2⁵ = 12220121989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220122001) 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, 1325706 + ... + 1334891.

It is an arithmetic number, because the mean of its divisors is an integer number (2038018068).

Almost surely, 2^12220122021 is an apocalyptic number.

It is an amenable number.

12220122021 is a deficient number, since it is larger than the sum of its proper divisors (4084022523).

12220122021 is a wasteful number, since it uses less digits than its factorization.

12220122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662131.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220122021 its reverse (12022102221), we get a palindrome (24242224242).

The spelling of 12220122021 in words is "twelve billion, two hundred twenty million, one hundred twenty-two thousand, twenty-one".