3122111249 has 2 divisors, whose sum is σ = 3122111250. Its totient is φ = 3122111248.

The previous prime is 3122111147. The next prime is 3122111257. The reversal of 3122111249 is 9421112213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2240318224 + 881793025 = 47332^2 + 29695^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122111249 - 2²⁰ = 3121062673 is a prime.

It is a super-2 number, since 2×3122111249² = 19495157302264680002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3122111269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561055624 + 1561055625.

It is an arithmetic number, because the mean of its divisors is an integer number (1561055625).

Almost surely, 2^3122111249 is an apocalyptic number.

It is an amenable number.

3122111249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122111249 is an equidigital number, since it uses as much as digits as its factorization.

3122111249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 3122111249 is about 55875.8556891973. The cubic root of 3122111249 is about 1461.5582364007.

The spelling of 3122111249 in words is "three billion, one hundred twenty-two million, one hundred eleven thousand, two hundred forty-nine".