10021202002191 has 4 divisors (see below), whose sum is σ = 13361602669592. Its totient is φ = 6680801334792.

The previous prime is 10021202002177. The next prime is 10021202002193. The reversal of 10021202002191 is 19120020212001.

10021202002191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10021202002191 - 2²⁶ = 10021134893327 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 (10021202002193) 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, 1670200333696 + ... + 1670200333701.

It is an arithmetic number, because the mean of its divisors is an integer number (3340400667398).

Almost surely, 2^{10021202002191} is an apocalyptic number.

10021202002191 is a deficient number, since it is larger than the sum of its proper divisors (3340400667401).

10021202002191 is an equidigital number, since it uses as much as digits as its factorization.

10021202002191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340400667400.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 10021202002191 its reverse (19120020212001), we get a palindrome (29141222214192).

The spelling of 10021202002191 in words is "ten trillion, twenty-one billion, two hundred two million, two thousand, one hundred ninety-one".