10101021200999 has 4 divisors (see below), whose sum is σ = 10101030466920. Its totient is φ = 10101011935080.

The previous prime is 10101021200899. The next prime is 10101021201049. The reversal of 10101021200999 is 99900212010101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10101021200999 - 2¹⁶ = 10101021135463 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 (10101021200099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2739944 + ... + 5263965.

It is an arithmetic number, because the mean of its divisors is an integer number (2525257616730).

Almost surely, 2^{10101021200999} is an apocalyptic number.

10101021200999 is a deficient number, since it is larger than the sum of its proper divisors (9265921).

10101021200999 is an equidigital number, since it uses as much as digits as its factorization.

10101021200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265920.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 10101021200999 in words is "ten trillion, one hundred one billion, twenty-one million, two hundred thousand, nine hundred ninety-nine".