1212111010012 has 18 divisors (see below), whose sum is σ = 2467511699352. Its totient is φ = 519476147064.

The previous prime is 1212111010007. The next prime is 1212111010027. The reversal of 1212111010012 is 2100101112121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212111009974 and 1212111010001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3092119728 + ... + 3092120119.

Almost surely, 2^{1212111010012} is an apocalyptic number.

It is an amenable number.

1212111010012 is an abundant number, since it is smaller than the sum of its proper divisors (1255400689340).

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

1212111010012 is a wasteful number, since it uses less digits than its factorization.

1212111010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184239865 (or 6184239856 counting only the distinct ones).

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

Adding to 1212111010012 its reverse (2100101112121), we get a palindrome (3312212122133).

The spelling of 1212111010012 in words is "one trillion, two hundred twelve billion, one hundred eleven million, ten thousand, twelve".