2021210612 has 24 divisors (see below), whose sum is σ = 3574771200. Its totient is φ = 999866016.

The previous prime is 2021210591. The next prime is 2021210617. The reversal of 2021210612 is 2160121202.

It is a super-2 number, since 2×2021210612² = 8170584676122829088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210617) 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, 723314 + ... + 726102.

It is an arithmetic number, because the mean of its divisors is an integer number (148948800).

Almost surely, 2^2021210612 is an apocalyptic number.

It is an amenable number.

2021210612 is a deficient number, since it is larger than the sum of its proper divisors (1553560588).

2021210612 is a wasteful number, since it uses less digits than its factorization.

2021210612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2021210612 is about 44957.8759729594. The cubic root of 2021210612 is about 1264.3593462698.

Adding to 2021210612 its reverse (2160121202), we get a palindrome (4181331814).

The spelling of 2021210612 in words is "two billion, twenty-one million, two hundred ten thousand, six hundred twelve".