12202110122021 has 4 divisors (see below), whose sum is σ = 12203967092544. Its totient is φ = 12200253151500.

The previous prime is 12202110122011. The next prime is 12202110122051. The reversal of 12202110122021 is 12022101120221.

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 a de Polignac number, because none of the positive numbers 2^k-12202110122021 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 (12202110122011) 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, 928475405 + ... + 928488546.

It is an arithmetic number, because the mean of its divisors is an integer number (3050991773136).

Almost surely, 2^{12202110122021} is an apocalyptic number.

It is an amenable number.

12202110122021 is a deficient number, since it is larger than the sum of its proper divisors (1856970523).

12202110122021 is an equidigital number, since it uses as much as digits as its factorization.

12202110122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856970522.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12202110122021 its reverse (12022101120221), we get a palindrome (24224211242242).

The spelling of 12202110122021 in words is "twelve trillion, two hundred two billion, one hundred ten million, one hundred twenty-two thousand, twenty-one".