3122342021 has 4 divisors (see below), whose sum is σ = 3154531212. Its totient is φ = 3090152832.

The previous prime is 3122342011. The next prime is 3122342033. The reversal of 3122342021 is 1202432213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1202432213 = 59 ⋅20380207.

It can be written as a sum of positive squares in 2 ways, for example, as 1721337121 + 1401004900 = 41489^2 + 37430^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122342021 - 2¹⁴ = 3122325637 is a prime.

It is a super-2 number, since 2×3122342021² = 19498039392204728882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122341984 and 3122342002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122342011) 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, 16094450 + ... + 16094643.

It is an arithmetic number, because the mean of its divisors is an integer number (788632803).

Almost surely, 2^3122342021 is an apocalyptic number.

It is an amenable number.

3122342021 is a deficient number, since it is larger than the sum of its proper divisors (32189191).

3122342021 is an equidigital number, since it uses as much as digits as its factorization.

3122342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32189190.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3122342021 is about 55877.9206932398. The cubic root of 3122342021 is about 1461.5942460515.

Adding to 3122342021 its reverse (1202432213), we get a palindrome (4324774234).

The spelling of 3122342021 in words is "three billion, one hundred twenty-two million, three hundred forty-two thousand, twenty-one".