10102001220999 has 48 divisors (see below), whose sum is σ = 15471449893120. Its totient is φ = 6340505610240.

The previous prime is 10102001220959. The next prime is 10102001221021. The reversal of 10102001220999 is 99902210020101.

It is not a de Polignac number, because 10102001220999 - 2⁸ = 10102001220743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102001220959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92119269 + ... + 92228865.

Almost surely, 2^{10102001220999} is an apocalyptic number.

10102001220999 is a deficient number, since it is larger than the sum of its proper divisors (5369448672121).

10102001220999 is a wasteful number, since it uses less digits than its factorization.

10102001220999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118600 (or 118597 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 10102001220999 in words is "ten trillion, one hundred two billion, one million, two hundred twenty thousand, nine hundred ninety-nine".