201000221099 has 4 divisors (see below), whose sum is σ = 202990322400. Its totient is φ = 199010119800.

The previous prime is 201000221047. The next prime is 201000221101. The reversal of 201000221099 is 990122000102.

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 201000221099 - 2²⁴ = 200983443883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000221039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995050499 + ... + 995050700.

It is an arithmetic number, because the mean of its divisors is an integer number (50747580600).

Almost surely, 2^201000221099 is an apocalyptic number.

201000221099 is a deficient number, since it is larger than the sum of its proper divisors (1990101301).

201000221099 is a wasteful number, since it uses less digits than its factorization.

201000221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990101300.

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

The spelling of 201000221099 in words is "two hundred one billion, two hundred twenty-one thousand, ninety-nine".