10121210200999 has 4 divisors (see below), whose sum is σ = 10122641982040. Its totient is φ = 10119778419960.

The previous prime is 10121210200973. The next prime is 10121210201009. The reversal of 10121210200999 is 99900201212101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10121210200999 - 2⁵ = 10121210200967 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 (10121210200919) 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, 715879917 + ... + 715894054.

It is an arithmetic number, because the mean of its divisors is an integer number (2530660495510).

Almost surely, 2^{10121210200999} is an apocalyptic number.

10121210200999 is a deficient number, since it is larger than the sum of its proper divisors (1431781041).

10121210200999 is an equidigital number, since it uses as much as digits as its factorization.

10121210200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431781040.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 10121210200999 in words is "ten trillion, one hundred twenty-one billion, two hundred ten million, two hundred thousand, nine hundred ninety-nine".