12220000203021 has 48 divisors (see below), whose sum is σ = 17846205969600. Its totient is φ = 7433772143616.

The previous prime is 12220000203011. The next prime is 12220000203053. The reversal of 12220000203021 is 12030200002221.

It is a happy number.

It is not a de Polignac number, because 12220000203021 - 2¹⁷ = 12220000071949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220000203011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21431895 + ... + 21994683.

It is an arithmetic number, because the mean of its divisors is an integer number (371795957700).

Almost surely, 2^{12220000203021} is an apocalyptic number.

It is an amenable number.

12220000203021 is a deficient number, since it is larger than the sum of its proper divisors (5626205766579).

12220000203021 is a wasteful number, since it uses less digits than its factorization.

12220000203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563310 (or 563297 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12220000203021 its reverse (12030200002221), we get a palindrome (24250200205242).

The spelling of 12220000203021 in words is "twelve trillion, two hundred twenty billion, two hundred three thousand, twenty-one".