122345011304221 has 16 divisors (see below), whose sum is σ = 127975875390000. Its totient is φ = 116812543550976.

The previous prime is 122345011304183. The next prime is 122345011304233. The reversal of 122345011304221 is 122403110543221.

It can be written as a sum of positive squares in 8 ways, for example, as 198550448100 + 122146460856121 = 445590^2 + 11051989^2 .

It is a cyclic number.

It is not a de Polignac number, because 122345011304221 - 2²⁵ = 122344977749789 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 (122345011304261) 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, 36411216 + ... + 39629113.

It is an arithmetic number, because the mean of its divisors is an integer number (7998492211875).

Almost surely, 2^{122345011304221} is an apocalyptic number.

It is an amenable number.

122345011304221 is a deficient number, since it is larger than the sum of its proper divisors (5630864085779).

122345011304221 is a wasteful number, since it uses less digits than its factorization.

122345011304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76040976.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 122345011304221 its reverse (122403110543221), we get a palindrome (244748121847442).

The spelling of 122345011304221 in words is "one hundred twenty-two trillion, three hundred forty-five billion, eleven million, three hundred four thousand, two hundred twenty-one".