210001211312 has 40 divisors (see below), whose sum is σ = 408654536400. Its totient is φ = 104542486272.

The previous prime is 210001211311. The next prime is 210001211317. The reversal of 210001211312 is 213112100012.

It is a super-2 number, since 2×210001211312² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210001211311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6987614 + ... + 7017602.

It is an arithmetic number, because the mean of its divisors is an integer number (10216363410).

Almost surely, 2^210001211312 is an apocalyptic number.

It is an amenable number.

210001211312 is a deficient number, since it is larger than the sum of its proper divisors (198653325088).

210001211312 is a wasteful number, since it uses less digits than its factorization.

210001211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31893 (or 31887 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 210001211312 its reverse (213112100012), we get a palindrome (423113311324).

The spelling of 210001211312 in words is "two hundred ten billion, one million, two hundred eleven thousand, three hundred twelve".