1122988112780 has 48 divisors (see below), whose sum is σ = 2365861068480. Its totient is φ = 447750955008.

The previous prime is 1122988112761. The next prime is 1122988112801. The reversal of 1122988112780 is 872118892211.

It is a happy number.

It is a super-2 number, since 2×1122988112780² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30399161 + ... + 30436079.

It is an arithmetic number, because the mean of its divisors is an integer number (49288772260).

Almost surely, 2^{1122988112780} is an apocalyptic number.

1122988112780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122988112780 is an abundant number, since it is smaller than the sum of its proper divisors (1242872955700).

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

1122988112780 is a wasteful number, since it uses less digits than its factorization.

1122988112780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41778 (or 41776 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 50.

The spelling of 1122988112780 in words is "one trillion, one hundred twenty-two billion, nine hundred eighty-eight million, one hundred twelve thousand, seven hundred eighty".