122312302221 has 16 divisors (see below), whose sum is σ = 163416176000. Its totient is φ = 81375141888.

The previous prime is 122312302207. The next prime is 122312302237. The reversal of 122312302221 is 122203213221.

It is not a de Polignac number, because 122312302221 - 2¹³ = 122312294029 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 (122312302241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208545 + ... + 3246441.

It is an arithmetic number, because the mean of its divisors is an integer number (10213511000).

Almost surely, 2^122312302221 is an apocalyptic number.

It is an amenable number.

122312302221 is a deficient number, since it is larger than the sum of its proper divisors (41103873779).

122312302221 is a wasteful number, since it uses less digits than its factorization.

122312302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40068.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122312302221 its reverse (122203213221), we get a palindrome (244515515442).

The spelling of 122312302221 in words is "one hundred twenty-two billion, three hundred twelve million, three hundred two thousand, two hundred twenty-one".