10002121199 has 8 divisors (see below), whose sum is σ = 11825168160. Its totient is φ = 8277617376.

The previous prime is 10002121153. The next prime is 10002121223. The reversal of 10002121199 is 99112120001.

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

It is not a de Polignac number, because 10002121199 - 2⁸ = 10002120943 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 (10002121399) 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, 24635564 + ... + 24635969.

It is an arithmetic number, because the mean of its divisors is an integer number (1478146020).

Almost surely, 2^10002121199 is an apocalyptic number.

10002121199 is a deficient number, since it is larger than the sum of its proper divisors (1823046961).

10002121199 is an equidigital number, since it uses as much as digits as its factorization.

10002121199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49271569.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 10002121199 in words is "ten billion, two million, one hundred twenty-one thousand, one hundred ninety-nine".