112210209978 has 32 divisors (see below), whose sum is σ = 226678288320. Its totient is φ = 37027209600.

The previous prime is 112210209977. The next prime is 112210210001. The reversal of 112210209978 is 879902012211.

112210209978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×112210209978² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112210209977) 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, 5570601 + ... + 5590707.

It is an arithmetic number, because the mean of its divisors is an integer number (7083696510).

Almost surely, 2^112210209978 is an apocalyptic number.

112210209978 is an abundant number, since it is smaller than the sum of its proper divisors (114468078342).

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

112210209978 is a wasteful number, since it uses less digits than its factorization.

112210209978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29422.

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

The spelling of 112210209978 in words is "one hundred twelve billion, two hundred ten million, two hundred nine thousand, nine hundred seventy-eight".