1222111110012 has 24 divisors (see below), whose sum is σ = 3070945866576. Its totient is φ = 376034187648.

The previous prime is 1222111109971. The next prime is 1222111110029. The reversal of 1222111110012 is 2100111112221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1222111109973 and 1222111110000.

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, 3917022633 + ... + 3917022944.

It is an arithmetic number, because the mean of its divisors is an integer number (127956077774).

Almost surely, 2^{1222111110012} is an apocalyptic number.

1222111110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222111110012 is an abundant number, since it is smaller than the sum of its proper divisors (1848834756564).

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

1222111110012 is a wasteful number, since it uses less digits than its factorization.

1222111110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7834045597 (or 7834045595 counting only the distinct ones).

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

Adding to 1222111110012 its reverse (2100111112221), we get a palindrome (3322222222233).

The spelling of 1222111110012 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred ten thousand, twelve".