1220020010112 has 32 divisors (see below), whose sum is σ = 3240678152880. Its totient is φ = 406673336576.

The previous prime is 1220020010087. The next prime is 1220020010113. The reversal of 1220020010112 is 2110100200221.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1220020010113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588567338 + ... + 1588568105.

Almost surely, 2^{1220020010112} is an apocalyptic number.

1220020010112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220020010112 is an abundant number, since it is smaller than the sum of its proper divisors (2020658142768).

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

1220020010112 is an equidigital number, since it uses as much as digits as its factorization.

1220020010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177135460 (or 3177135448 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220020010112 its reverse (2110100200221), we get a palindrome (3330120210333).

The spelling of 1220020010112 in words is "one trillion, two hundred twenty billion, twenty million, ten thousand, one hundred twelve".