1220110119978 has 32 divisors (see below), whose sum is σ = 2589474700800. Its totient is φ = 382427045616.

The previous prime is 1220110119971. The next prime is 1220110120003. The reversal of 1220110119978 is 8799110110221.

It is not an unprimeable number, because it can be changed into a prime (1220110119971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74918788 + ... + 74935071.

It is an arithmetic number, because the mean of its divisors is an integer number (80921084400).

Almost surely, 2^{1220110119978} is an apocalyptic number.

1220110119978 is an abundant number, since it is smaller than the sum of its proper divisors (1369364580822).

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

1220110119978 is a wasteful number, since it uses less digits than its factorization.

1220110119978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149853946.

The product of its (nonzero) digits is 18144, while the sum is 42.

The spelling of 1220110119978 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred nineteen thousand, nine hundred seventy-eight".