3112213021 has 8 divisors (see below), whose sum is σ = 3214357344. Its totient is φ = 3011421840.

The previous prime is 3112213009. The next prime is 3112213031. The reversal of 3112213021 is 1203122113.

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 3112213021 - 2¹³ = 3112204829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112212986 and 3112213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112213031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333610 + ... + 342811.

It is an arithmetic number, because the mean of its divisors is an integer number (401794668).

Almost surely, 2^3112213021 is an apocalyptic number.

It is an amenable number.

3112213021 is a deficient number, since it is larger than the sum of its proper divisors (102144323).

3112213021 is a wasteful number, since it uses less digits than its factorization.

3112213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676571.

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

The square root of 3112213021 is about 55787.2119844683. The cubic root of 3112213021 is about 1460.0120442179.

Adding to 3112213021 its reverse (1203122113), we get a palindrome (4315335134).

The spelling of 3112213021 in words is "three billion, one hundred twelve million, two hundred thirteen thousand, twenty-one".