12210112112021 has 4 divisors (see below), whose sum is σ = 12255167876544. Its totient is φ = 12165056347500.

The previous prime is 12210112112017. The next prime is 12210112112027. The reversal of 12210112112021 is 12021121101221.

12210112112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12210112112021 - 2² = 12210112112017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210112112027) 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, 22527881855 + ... + 22527882396.

It is an arithmetic number, because the mean of its divisors is an integer number (3063791969136).

Almost surely, 2^{12210112112021} is an apocalyptic number.

It is an amenable number.

12210112112021 is a deficient number, since it is larger than the sum of its proper divisors (45055764523).

12210112112021 is an equidigital number, since it uses as much as digits as its factorization.

12210112112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45055764522.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12210112112021 its reverse (12021121101221), we get a palindrome (24231233213242).

The spelling of 12210112112021 in words is "twelve trillion, two hundred ten billion, one hundred twelve million, one hundred twelve thousand, twenty-one".