210101223312 has 60 divisors (see below), whose sum is σ = 588255368220. Its totient is φ = 70002326784.

The previous prime is 210101223287. The next prime is 210101223341. The reversal of 210101223312 is 213322101012.

210101223312 is a `hidden beast` number, since 210 + 1 + 0 + 122 + 331 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 185041066896 + 25060156416 = 430164^2 + 158304^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3987 + ... + 648242.

It is an arithmetic number, because the mean of its divisors is an integer number (9804256137).

Almost surely, 2^210101223312 is an apocalyptic number.

It is an amenable number.

210101223312 is an abundant number, since it is smaller than the sum of its proper divisors (378154144908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210101223312 is a wasteful number, since it uses less digits than its factorization.

210101223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654480 (or 654471 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 210101223312 its reverse (213322101012), we get a palindrome (423423324324).

The spelling of 210101223312 in words is "two hundred ten billion, one hundred one million, two hundred twenty-three thousand, three hundred twelve".