3122242021 has 4 divisors (see below), whose sum is σ = 3122496832. Its totient is φ = 3121987212.

The previous prime is 3122241989. The next prime is 3122242037. The reversal of 3122242021 is 1202422213.

3122242021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1202422213 = 15649 ⋅76837.

It is a cyclic number.

It is not a de Polignac number, because 3122242021 - 2⁵ = 3122241989 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 3122242021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122242091) 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, 108045 + ... + 133858.

It is an arithmetic number, because the mean of its divisors is an integer number (780624208).

Almost surely, 2^3122242021 is an apocalyptic number.

It is an amenable number.

3122242021 is a deficient number, since it is larger than the sum of its proper divisors (254811).

3122242021 is a wasteful number, since it uses less digits than its factorization.

3122242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254810.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3122242021 is about 55877.0258782623. The cubic root of 3122242021 is about 1461.5786422746.

Adding to 3122242021 its reverse (1202422213), we get a palindrome (4324664234).

The spelling of 3122242021 in words is "three billion, one hundred twenty-two million, two hundred forty-two thousand, twenty-one".