122311111522121 has 8 divisors (see below), whose sum is σ = 122862221900544. Its totient is φ = 121760024626800.

The previous prime is 122311111522099. The next prime is 122311111522157. The reversal of 122311111522121 is 121225111113221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122311111522121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122311111522021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4611710 + ... + 16306136.

It is an arithmetic number, because the mean of its divisors is an integer number (15357777737568).

Almost surely, 2^{122311111522121} is an apocalyptic number.

It is an amenable number.

122311111522121 is a deficient number, since it is larger than the sum of its proper divisors (551110378423).

122311111522121 is a wasteful number, since it uses less digits than its factorization.

122311111522121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741551.

The product of its digits is 480, while the sum is 26.

Adding to 122311111522121 its reverse (121225111113221), we get a palindrome (243536222635342).

The spelling of 122311111522121 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred eleven million, five hundred twenty-two thousand, one hundred twenty-one".