12210002313021 has 6 divisors (see below), whose sum is σ = 17636670007710. Its totient is φ = 8140001542008.

The previous prime is 12210002312987. The next prime is 12210002313083. The reversal of 12210002313021 is 12031320001221.

12210002313021 is a `hidden beast` number, since 122 + 10 + 0 + 0 + 231 + 302 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9205222748121 + 3004779564900 = 3034011^2 + 1733430^2 .

It is not a de Polignac number, because 12210002313021 - 2¹⁵ = 12210002280253 is a prime.

It is a super-2 number, since 2×12210002313021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12210002312985 and 12210002313003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210002313221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678333461826 + ... + 678333461843.

It is an arithmetic number, because the mean of its divisors is an integer number (2939445001285).

Almost surely, 2^{12210002313021} is an apocalyptic number.

It is an amenable number.

12210002313021 is a deficient number, since it is larger than the sum of its proper divisors (5426667694689).

12210002313021 is a wasteful number, since it uses less digits than its factorization.

12210002313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356666923675 (or 1356666923672 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12210002313021 its reverse (12031320001221), we get a palindrome (24241322314242).

The spelling of 12210002313021 in words is "twelve trillion, two hundred ten billion, two million, three hundred thirteen thousand, twenty-one".