10021202099 has 4 divisors (see below), whose sum is σ = 10021578936. Its totient is φ = 10020825264.

The previous prime is 10021202089. The next prime is 10021202117. The reversal of 10021202099 is 99020212001.

It is a happy number.

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 10021202099 - 2⁸ = 10021201843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021202089) 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, 145229 + ... + 202814.

It is an arithmetic number, because the mean of its divisors is an integer number (2505394734).

Almost surely, 2^10021202099 is an apocalyptic number.

10021202099 is a deficient number, since it is larger than the sum of its proper divisors (376837).

10021202099 is an equidigital number, since it uses as much as digits as its factorization.

10021202099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376836.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 10021202099 in words is "ten billion, twenty-one million, two hundred two thousand, ninety-nine".