100001981210 has 32 divisors (see below), whose sum is σ = 184890245760. Its totient is φ = 38921940288.

The previous prime is 100001981141. The next prime is 100001981227. The reversal of 100001981210 is 12189100001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329045 + ... + 555224.

It is an arithmetic number, because the mean of its divisors is an integer number (5777820180).

Almost surely, 2^100001981210 is an apocalyptic number.

100001981210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100001981210 is a deficient number, since it is larger than the sum of its proper divisors (84888264550).

100001981210 is a wasteful number, since it uses less digits than its factorization.

100001981210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884582.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 100001981210 in words is "one hundred billion, one million, nine hundred eighty-one thousand, two hundred ten".