122012012011121 has 4 divisors (see below), whose sum is σ = 122012946534000. Its totient is φ = 122011077488244.

The previous prime is 122012012011079. The next prime is 122012012011187. The reversal of 122012012011121 is 121110210210221.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122012012011121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122012012011121.

It is not an unprimeable number, because it can be changed into a prime (122012012011321) 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, 467065571 + ... + 467326728.

It is an arithmetic number, because the mean of its divisors is an integer number (30503236633500).

Almost surely, 2^{122012012011121} is an apocalyptic number.

It is an amenable number.

122012012011121 is a deficient number, since it is larger than the sum of its proper divisors (934522879).

122012012011121 is an equidigital number, since it uses as much as digits as its factorization.

122012012011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934522878.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122012012011121 its reverse (121110210210221), we get a palindrome (243122222221342).

The spelling of 122012012011121 in words is "one hundred twenty-two trillion, twelve billion, twelve million, eleven thousand, one hundred twenty-one".