12210013102021 has 4 divisors (see below), whose sum is σ = 13954300688032. Its totient is φ = 10465725516012.

The previous prime is 12210013101989. The next prime is 12210013102097. The reversal of 12210013102021 is 12020131001221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12210013102021 - 2⁵ = 12210013101989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210013101986 and 12210013102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210013102421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872143792995 + ... + 872143793008.

It is an arithmetic number, because the mean of its divisors is an integer number (3488575172008).

Almost surely, 2^{12210013102021} is an apocalyptic number.

It is an amenable number.

12210013102021 is a deficient number, since it is larger than the sum of its proper divisors (1744287586011).

12210013102021 is an equidigital number, since it uses as much as digits as its factorization.

12210013102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744287586010.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12210013102021 its reverse (12020131001221), we get a palindrome (24230144103242).

The spelling of 12210013102021 in words is "twelve trillion, two hundred ten billion, thirteen million, one hundred two thousand, twenty-one".