1122220111012 has 72 divisors (see below), whose sum is σ = 2656800926528. Its totient is φ = 403595628480.

The previous prime is 1122220110989. The next prime is 1122220111021. The reversal of 1122220111012 is 2101110222211.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12695718 + ... + 12783805.

Almost surely, 2^{1122220111012} is an apocalyptic number.

It is an amenable number.

1122220111012 is an abundant number, since it is smaller than the sum of its proper divisors (1534580815516).

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

1122220111012 is a wasteful number, since it uses less digits than its factorization.

1122220111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25479569 (or 25479556 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1122220111012 its reverse (2101110222211), we get a palindrome (3223330333223).

The spelling of 1122220111012 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, one hundred eleven thousand, twelve".