2021313212 has 48 divisors (see below), whose sum is σ = 3754662912. Its totient is φ = 950624640.

The previous prime is 2021313211. The next prime is 2021313223. The reversal of 2021313212 is 2123131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021313211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241543 + ... + 1243169.

It is an arithmetic number, because the mean of its divisors is an integer number (78222144).

Almost surely, 2^2021313212 is an apocalyptic number.

It is an amenable number.

2021313212 is a deficient number, since it is larger than the sum of its proper divisors (1733349700).

2021313212 is a wasteful number, since it uses less digits than its factorization.

2021313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2021313212 is about 44959.0170266210. The cubic root of 2021313212 is about 1264.3807395663.

Adding to 2021313212 its reverse (2123131202), we get a palindrome (4144444414).

The spelling of 2021313212 in words is "two billion, twenty-one million, three hundred thirteen thousand, two hundred twelve".