122131202213 has 4 divisors (see below), whose sum is σ = 122374008288. Its totient is φ = 121888396140.

The previous prime is 122131202131. The next prime is 122131202227. The reversal of 122131202213 is 312202131221.

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 122131202213 - 2³² = 117836234917 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 (122131202813) 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, 121402283 + ... + 121403288.

It is an arithmetic number, because the mean of its divisors is an integer number (30593502072).

Almost surely, 2^122131202213 is an apocalyptic number.

It is an amenable number.

122131202213 is a deficient number, since it is larger than the sum of its proper divisors (242806075).

122131202213 is an equidigital number, since it uses as much as digits as its factorization.

122131202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242806074.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 122131202213 its reverse (312202131221), we get a palindrome (434333333434).

The spelling of 122131202213 in words is "one hundred twenty-two billion, one hundred thirty-one million, two hundred two thousand, two hundred thirteen".