1220488081912 has 128 divisors (see below), whose sum is σ = 2655215769600. Its totient is φ = 520594905600.

The previous prime is 1220488081907. The next prime is 1220488081951. The reversal of 1220488081912 is 2191808840221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93567663 + ... + 93580705.

It is an arithmetic number, because the mean of its divisors is an integer number (20743873200).

Almost surely, 2^{1220488081912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220488081912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327607884800).

1220488081912 is an abundant number, since it is smaller than the sum of its proper divisors (1434727687688).

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

1220488081912 is a wasteful number, since it uses less digits than its factorization.

1220488081912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14117 (or 14113 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 1220488081912 in words is "one trillion, two hundred twenty billion, four hundred eighty-eight million, eighty-one thousand, nine hundred twelve".