210101011212 has 48 divisors (see below), whose sum is σ = 503950712832. Its totient is φ = 68101407360.

The previous prime is 210101011201. The next prime is 210101011261. The reversal of 210101011212 is 212110101012.

210101011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626828 + ... + 1751219.

It is an arithmetic number, because the mean of its divisors is an integer number (10498973184).

Almost surely, 2^210101011212 is an apocalyptic number.

It is an amenable number.

210101011212 is an abundant number, since it is smaller than the sum of its proper divisors (293849701620).

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

210101011212 is a wasteful number, since it uses less digits than its factorization.

210101011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378198 (or 3378196 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210101011212 its reverse (212110101012), we get a palindrome (422211112224).

The spelling of 210101011212 in words is "two hundred ten billion, one hundred one million, eleven thousand, two hundred twelve".