10211100109978 has 16 divisors (see below), whose sum is σ = 15612192688896. Its totient is φ = 5007116733840.

The previous prime is 10211100109967. The next prime is 10211100110009. The reversal of 10211100109978 is 87990100111201.

It is a self number, because there is not a number n which added to its sum of digits gives 10211100109978.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19959558 + ... + 20464753.

It is an arithmetic number, because the mean of its divisors is an integer number (975762043056).

Almost surely, 2^{10211100109978} is an apocalyptic number.

10211100109978 is a deficient number, since it is larger than the sum of its proper divisors (5401092578918).

10211100109978 is a wasteful number, since it uses less digits than its factorization.

10211100109978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40426749.

The product of its (nonzero) digits is 9072, while the sum is 40.

The spelling of 10211100109978 in words is "ten trillion, two hundred eleven billion, one hundred million, one hundred nine thousand, nine hundred seventy-eight".