1220001086976 has 80 divisors (see below), whose sum is σ = 3714467627904. Its totient is φ = 348571736064.

The previous prime is 1220001086939. The next prime is 1220001087001. The reversal of 1220001086976 is 6796801000221.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 56722930 + ... + 56744433.

Almost surely, 2^{1220001086976} is an apocalyptic number.

1220001086976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1220001086976 is an abundant number, since it is smaller than the sum of its proper divisors (2494466540928).

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

1220001086976 is an equidigital number, since it uses as much as digits as its factorization.

1220001086976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113467391 (or 113467375 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 1220001086976 in words is "one trillion, two hundred twenty billion, one million, eighty-six thousand, nine hundred seventy-six".