1220102112112 has 40 divisors (see below), whose sum is σ = 2568319148304. Its totient is φ = 558140642304.

The previous prime is 1220102112049. The next prime is 1220102112139. The reversal of 1220102112112 is 2112112010221.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 25931698 + ... + 25978705.

Almost surely, 2^{1220102112112} is an apocalyptic number.

It is an amenable number.

1220102112112 is an abundant number, since it is smaller than the sum of its proper divisors (1348217036192).

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

1220102112112 is a wasteful number, since it uses less digits than its factorization.

1220102112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51910537 (or 51910531 counting only the distinct ones).

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

Adding to 1220102112112 its reverse (2112112010221), we get a palindrome (3332214122333).

The spelling of 1220102112112 in words is "one trillion, two hundred twenty billion, one hundred two million, one hundred twelve thousand, one hundred twelve".