122611368221 has 4 divisors (see below), whose sum is σ = 122612164992. Its totient is φ = 122610571452.

The previous prime is 122611368179. The next prime is 122611368227. The reversal of 122611368221 is 122863116221.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122611368221 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 (122611368227) 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, 85805 + ... + 502578.

It is an arithmetic number, because the mean of its divisors is an integer number (30653041248).

Almost surely, 2^122611368221 is an apocalyptic number.

It is an amenable number.

122611368221 is a deficient number, since it is larger than the sum of its proper divisors (796771).

122611368221 is an equidigital number, since it uses as much as digits as its factorization.

122611368221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796770.

The product of its digits is 13824, while the sum is 35.

The spelling of 122611368221 in words is "one hundred twenty-two billion, six hundred eleven million, three hundred sixty-eight thousand, two hundred twenty-one".