10100100199981 has 8 divisors (see below), whose sum is σ = 11029211150400. Its totient is φ = 9172809253440.

The previous prime is 10100100199967. The next prime is 10100100200033. The reversal of 10100100199981 is 18999100100101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10100100199981 - 2⁷ = 10100100199853 is a prime.

It is a super-2 number, since 2×10100100199981² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100100199481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454989361 + ... + 455011558.

It is an arithmetic number, because the mean of its divisors is an integer number (1378651393800).

Almost surely, 2^{10100100199981} is an apocalyptic number.

10100100199981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10100100199981 is a deficient number, since it is larger than the sum of its proper divisors (929110950419).

10100100199981 is a wasteful number, since it uses less digits than its factorization.

10100100199981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910001939.

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 10100100199981 in words is "ten trillion, one hundred billion, one hundred million, one hundred ninety-nine thousand, nine hundred eighty-one".