199221101 has 8 divisors (see below), whose sum is σ = 210812544. Its totient is φ = 187873840.

The previous prime is 199221049. The next prime is 199221119. The reversal of 199221101 is 101122991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199221101 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 (199221151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59366 + ... + 62631.

It is an arithmetic number, because the mean of its divisors is an integer number (26351568).

Almost surely, 2^199221101 is an apocalyptic number.

It is an amenable number.

199221101 is a deficient number, since it is larger than the sum of its proper divisors (11591443).

199221101 is a wasteful number, since it uses less digits than its factorization.

199221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122091.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 199221101 is about 14114.5705212734. The cubic root of 199221101 is about 584.0433884774.

The spelling of 199221101 in words is "one hundred ninety-nine million, two hundred twenty-one thousand, one hundred one".