3122120011121 has 4 divisors (see below), whose sum is σ = 3188548096512. Its totient is φ = 3055691925732.

The previous prime is 3122120011111. The next prime is 3122120011139. The reversal of 3122120011121 is 1211100212213.

It is a happy number.

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-3122120011121 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 3122120011121.

It is not an unprimeable number, because it can be changed into a prime (3122120011111) 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, 33214042625 + ... + 33214042718.

It is an arithmetic number, because the mean of its divisors is an integer number (797137024128).

Almost surely, 2^{3122120011121} is an apocalyptic number.

It is an amenable number.

3122120011121 is a deficient number, since it is larger than the sum of its proper divisors (66428085391).

3122120011121 is an equidigital number, since it uses as much as digits as its factorization.

3122120011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66428085390.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 3122120011121 its reverse (1211100212213), we get a palindrome (4333220223334).

The spelling of 3122120011121 in words is "three trillion, one hundred twenty-two billion, one hundred twenty million, eleven thousand, one hundred twenty-one".