1112020209978 has 32 divisors (see below), whose sum is σ = 2312652427200. Its totient is φ = 356037190656.

The previous prime is 1112020209961. The next prime is 1112020210003. The reversal of 1112020209978 is 8799020202111.

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, 16523208 + ... + 16590371.

It is an arithmetic number, because the mean of its divisors is an integer number (72270388350).

Almost surely, 2^{1112020209978} is an apocalyptic number.

1112020209978 is an abundant number, since it is smaller than the sum of its proper divisors (1200632217222).

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

1112020209978 is a wasteful number, since it uses less digits than its factorization.

1112020209978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33113806.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 1112020209978 in words is "one trillion, one hundred twelve billion, twenty million, two hundred nine thousand, nine hundred seventy-eight".