3312112021 has 4 divisors (see below), whose sum is σ = 3328756000. Its totient is φ = 3295468044.

The previous prime is 3312112003. The next prime is 3312112049. The reversal of 3312112021 is 1202112133.

3312112021 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: 1202112133 = 53 ⋅22681361.

It is a cyclic number.

It is not a de Polignac number, because 3312112021 - 2³¹ = 1164628373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3312111986 and 3312112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3312112721) 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, 8321691 + ... + 8322088.

It is an arithmetic number, because the mean of its divisors is an integer number (832189000).

Almost surely, 2^3312112021 is an apocalyptic number.

It is an amenable number.

3312112021 is a deficient number, since it is larger than the sum of its proper divisors (16643979).

3312112021 is a wasteful number, since it uses less digits than its factorization.

3312112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16643978.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3312112021 is about 57550.9515212390. The cubic root of 3312112021 is about 1490.6247880496.

Adding to 3312112021 its reverse (1202112133), we get a palindrome (4514224154).

The spelling of 3312112021 in words is "three billion, three hundred twelve million, one hundred twelve thousand, twenty-one".