3112021021 has 8 divisors (see below), whose sum is σ = 3170849760. Its totient is φ = 3053395152.

The previous prime is 3112021013. The next prime is 3112021043. The reversal of 3112021021 is 1201202113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3112021021 - 2³ = 3112021013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112020992 and 3112021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112021321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19570 + ... + 81283.

It is an arithmetic number, because the mean of its divisors is an integer number (396356220).

Almost surely, 2^3112021021 is an apocalyptic number.

It is an amenable number.

3112021021 is a deficient number, since it is larger than the sum of its proper divisors (58828739).

3112021021 is a wasteful number, since it uses less digits than its factorization.

3112021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101435.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3112021021 is about 55785.4911334480. The cubic root of 3112021021 is about 1459.9820197010.

Adding to 3112021021 its reverse (1201202113), we get a palindrome (4313223134).

The spelling of 3112021021 in words is "three billion, one hundred twelve million, twenty-one thousand, twenty-one".