210111120001212 has 24 divisors (see below), whose sum is σ = 492457752116736. Its totient is φ = 69722972555568.

The previous prime is 210111120001129. The next prime is 210111120001241. The reversal of 210111120001212 is 212100021111012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210111120001191 and 210111120001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39258427818 + ... + 39258433169.

It is an arithmetic number, because the mean of its divisors is an integer number (20519073004864).

Almost surely, 2^{210111120001212} is an apocalyptic number.

It is an amenable number.

210111120001212 is an abundant number, since it is smaller than the sum of its proper divisors (282346632115524).

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

210111120001212 is a wasteful number, since it uses less digits than its factorization.

210111120001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78516861217 (or 78516861215 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210111120001212 its reverse (212100021111012), we get a palindrome (422211141112224).

The spelling of 210111120001212 in words is "two hundred ten trillion, one hundred eleven billion, one hundred twenty million, one thousand, two hundred twelve".