213022099 has 4 divisors (see below), whose sum is σ = 213441120. Its totient is φ = 212603080.

The previous prime is 213022097. The next prime is 213022163. The reversal of 213022099 is 990220312.

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 213022099 - 2¹ = 213022097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213022097) 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, 208747 + ... + 209764.

It is an arithmetic number, because the mean of its divisors is an integer number (53360280).

Almost surely, 2^213022099 is an apocalyptic number.

213022099 is a deficient number, since it is larger than the sum of its proper divisors (419021).

213022099 is an equidigital number, since it uses as much as digits as its factorization.

213022099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419020.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 213022099 is about 14595.2765989549. The cubic root of 213022099 is about 597.2299149890.

The spelling of 213022099 in words is "two hundred thirteen million, twenty-two thousand, ninety-nine".