122031312220213 has 4 divisors (see below), whose sum is σ = 133125067876608. Its totient is φ = 110937556563820.

The previous prime is 122031312220141. The next prime is 122031312220219. The reversal of 122031312220213 is 312022213130221.

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 122031312220213 - 2²⁵ = 122031278665781 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 (122031312220219) 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, 5546877828181 + ... + 5546877828202.

It is an arithmetic number, because the mean of its divisors is an integer number (33281266969152).

Almost surely, 2^{122031312220213} is an apocalyptic number.

It is an amenable number.

122031312220213 is a deficient number, since it is larger than the sum of its proper divisors (11093755656395).

122031312220213 is a wasteful number, since it uses less digits than its factorization.

122031312220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11093755656394.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 122031312220213 its reverse (312022213130221), we get a palindrome (434053525350434).

The spelling of 122031312220213 in words is "one hundred twenty-two trillion, thirty-one billion, three hundred twelve million, two hundred twenty thousand, two hundred thirteen".