10020201099978 has 16 divisors (see below), whose sum is σ = 21095160210720. Its totient is φ = 3164274031536.

The previous prime is 10020201099977. The next prime is 10020201100067. The reversal of 10020201099978 is 87999010202001.

It is not an unprimeable number, because it can be changed into a prime (10020201099977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43948250325 + ... + 43948250552.

It is an arithmetic number, because the mean of its divisors is an integer number (1318447513170).

Almost surely, 2^{10020201099978} is an apocalyptic number.

10020201099978 is an abundant number, since it is smaller than the sum of its proper divisors (11074959110742).

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

10020201099978 is a wasteful number, since it uses less digits than its factorization.

10020201099978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87896500901.

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 10020201099978 in words is "ten trillion, twenty billion, two hundred one million, ninety-nine thousand, nine hundred seventy-eight".