3122220010121 has 4 divisors (see below), whose sum is σ = 3123293309700. Its totient is φ = 3121146710544.

The previous prime is 3122220010099. The next prime is 3122220010181. The reversal of 3122220010121 is 1210100222213.

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 1450916611600 + 1671303398521 = 1204540^2 + 1292789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3122220010121 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 3122220010121.

It is not an unprimeable number, because it can be changed into a prime (3122220010181) 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, 536645426 + ... + 536651243.

It is an arithmetic number, because the mean of its divisors is an integer number (780823327425).

Almost surely, 2^{3122220010121} is an apocalyptic number.

It is an amenable number.

3122220010121 is a deficient number, since it is larger than the sum of its proper divisors (1073299579).

3122220010121 is a wasteful number, since it uses less digits than its factorization.

3122220010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073299578.

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

Adding to 3122220010121 its reverse (1210100222213), we get a palindrome (4332320232334).

The spelling of 3122220010121 in words is "three trillion, one hundred twenty-two billion, two hundred twenty million, ten thousand, one hundred twenty-one".