212102112112012 has 12 divisors (see below), whose sum is σ = 371301643781320. Its totient is φ = 106015928174496.

The previous prime is 212102112112003. The next prime is 212102112112031. The reversal of 212102112112012 is 210211211201212.

It is a happy number.

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, 8781956793 + ... + 8781980944.

Almost surely, 2^{212102112112012} is an apocalyptic number.

It is an amenable number.

212102112112012 is a deficient number, since it is larger than the sum of its proper divisors (159199531669308).

212102112112012 is a wasteful number, since it uses less digits than its factorization.

212102112112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17563940760 (or 17563940758 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212102112112012 its reverse (210211211201212), we get a palindrome (422313323313224).

The spelling of 212102112112012 in words is "two hundred twelve trillion, one hundred two billion, one hundred twelve million, one hundred twelve thousand, twelve".