3012122121 has 4 divisors (see below), whose sum is σ = 4016162832. Its totient is φ = 2008081412.

The previous prime is 3012122083. The next prime is 3012122147. The reversal of 3012122121 is 1212212103.

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.

It is a cyclic number.

It is not a de Polignac number, because 3012122121 - 2¹⁹ = 3011597833 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3012122121.

It is not an unprimeable number, because it can be changed into a prime (3012122171) 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, 502020351 + ... + 502020356.

It is an arithmetic number, because the mean of its divisors is an integer number (1004040708).

Almost surely, 2^3012122121 is an apocalyptic number.

It is an amenable number.

3012122121 is a deficient number, since it is larger than the sum of its proper divisors (1004040711).

3012122121 is a wasteful number, since it uses less digits than its factorization.

3012122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004040710.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3012122121 is about 54882.8035089316. The cubic root of 3012122121 is about 1444.1895290255.

Adding to 3012122121 its reverse (1212212103), we get a palindrome (4224334224).

The spelling of 3012122121 in words is "three billion, twelve million, one hundred twenty-two thousand, one hundred twenty-one".