210011111212 has 12 divisors (see below), whose sum is σ = 420022222480. Its totient is φ = 90004761936.

The previous prime is 210011111197. The next prime is 210011111227. The reversal of 210011111212 is 212111110012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210011111197) and next prime (210011111227).

210011111212 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 210011111192 and 210011111201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3750198387 + ... + 3750198442.

Almost surely, 2^210011111212 is an apocalyptic number.

It is an amenable number.

210011111212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

210011111212 is a wasteful number, since it uses less digits than its factorization.

210011111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500396840 (or 7500396838 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210011111212 its reverse (212111110012), we get a palindrome (422122221224).

The spelling of 210011111212 in words is "two hundred ten billion, eleven million, one hundred eleven thousand, two hundred twelve".