3012002121 has 4 divisors (see below), whose sum is σ = 4016002832. Its totient is φ = 2008001412.

The previous prime is 3012002107. The next prime is 3012002143. The reversal of 3012002121 is 1212002103.

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 not a de Polignac number, because 3012002121 - 2¹⁵ = 3011969353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012002097 and 3012002106.

It is not an unprimeable number, because it can be changed into a prime (3012002101) 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, 502000351 + ... + 502000356.

It is an arithmetic number, because the mean of its divisors is an integer number (1004000708).

Almost surely, 2^3012002121 is an apocalyptic number.

It is an amenable number.

3012002121 is a deficient number, since it is larger than the sum of its proper divisors (1004000711).

3012002121 is a wasteful number, since it uses less digits than its factorization.

3012002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004000710.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3012002121 is about 54881.7102594298. The cubic root of 3012002121 is about 1444.1703504046.

Adding to 3012002121 its reverse (1212002103), we get a palindrome (4224004224).

The spelling of 3012002121 in words is "three billion, twelve million, two thousand, one hundred twenty-one".