101011112219978 has 16 divisors (see below), whose sum is σ = 156524336918016. Its totient is φ = 48838833958320.

The previous prime is 101011112219957. The next prime is 101011112219993. The reversal of 101011112219978 is 879912211110101.

101011112219978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625096301 + ... + 625257872.

It is an arithmetic number, because the mean of its divisors is an integer number (9782771057376).

Almost surely, 2^{101011112219978} is an apocalyptic number.

101011112219978 is a deficient number, since it is larger than the sum of its proper divisors (55513224698038).

101011112219978 is a wasteful number, since it uses less digits than its factorization.

101011112219978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250355509.

The product of its (nonzero) digits is 18144, while the sum is 44.

The spelling of 101011112219978 in words is "one hundred one trillion, eleven billion, one hundred twelve million, two hundred nineteen thousand, nine hundred seventy-eight".