10102001021209 has 16 divisors (see below), whose sum is σ = 10443530911104. Its totient is φ = 9766319472000.

The previous prime is 10102001021141. The next prime is 10102001021219. The reversal of 10102001021209 is 90212010020101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10102001021209 - 2²³ = 10101992632601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10102001021219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2824164 + ... + 5308474.

It is an arithmetic number, because the mean of its divisors is an integer number (652720681944).

Almost surely, 2^{10102001021209} is an apocalyptic number.

It is an amenable number.

10102001021209 is a deficient number, since it is larger than the sum of its proper divisors (341529889895).

10102001021209 is a wasteful number, since it uses less digits than its factorization.

10102001021209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485488.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 10102001021209 in words is "ten trillion, one hundred two billion, one million, twenty-one thousand, two hundred nine".