122342565243221 has 16 divisors (see below), whose sum is σ = 125108267634864. Its totient is φ = 119608918401024.

The previous prime is 122342565243211. The next prime is 122342565243271.

122342565243221 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 5961923307025 + 116380641936196 = 2441705^2 + 10787986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122342565243221 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 (122342565243211) 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, 2264060 + ... + 15805413.

It is an arithmetic number, because the mean of its divisors is an integer number (7819266727179).

Almost surely, 2^{122342565243221} is an apocalyptic number.

It is an amenable number.

122342565243221 is a deficient number, since it is larger than the sum of its proper divisors (2765702391643).

122342565243221 is a wasteful number, since it uses less digits than its factorization.

122342565243221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18070360.

The product of its digits is 1382400, while the sum is 44.

The spelling of 122342565243221 in words is "one hundred twenty-two trillion, three hundred forty-two billion, five hundred sixty-five million, two hundred forty-three thousand, two hundred twenty-one".