3122100022121 has 4 divisors (see below), whose sum is σ = 3150743141700. Its totient is φ = 3093456902544.

The previous prime is 3122100022099. The next prime is 3122100022127. The reversal of 3122100022121 is 1212200012213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2121870008896 + 1000230013225 = 1456664^2 + 1000115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3122100022121 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 3122100022121.

It is not an unprimeable number, because it can be changed into a prime (3122100022127) 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, 14321559626 + ... + 14321559843.

It is an arithmetic number, because the mean of its divisors is an integer number (787685785425).

Almost surely, 2^{3122100022121} is an apocalyptic number.

It is an amenable number.

3122100022121 is a deficient number, since it is larger than the sum of its proper divisors (28643119579).

3122100022121 is a wasteful number, since it uses less digits than its factorization.

3122100022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28643119578.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 3122100022121 its reverse (1212200012213), we get a palindrome (4334300034334).

The spelling of 3122100022121 in words is "three trillion, one hundred twenty-two billion, one hundred million, twenty-two thousand, one hundred twenty-one".