122102045557321 has 16 divisors (see below), whose sum is σ = 126061314693120. Its totient is φ = 118177498134720.

The previous prime is 122102045557319. The next prime is 122102045557339. The reversal of 122102045557321 is 123755540201221.

It is a cyclic number.

It is not a de Polignac number, because 122102045557321 - 2¹ = 122102045557319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102045957321) 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, 395873455 + ... + 396181771.

It is an arithmetic number, because the mean of its divisors is an integer number (7878832168320).

Almost surely, 2^{122102045557321} is an apocalyptic number.

It is an amenable number.

122102045557321 is a deficient number, since it is larger than the sum of its proper divisors (3959269135799).

122102045557321 is a wasteful number, since it uses less digits than its factorization.

122102045557321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364584.

The product of its (nonzero) digits is 168000, while the sum is 40.

Adding to 122102045557321 its reverse (123755540201221), we get a palindrome (245857585758542).

The spelling of 122102045557321 in words is "one hundred twenty-two trillion, one hundred two billion, forty-five million, five hundred fifty-seven thousand, three hundred twenty-one".