221211210199 has 8 divisors (see below), whose sum is σ = 253861829408. Its totient is φ = 188822845440.

The previous prime is 221211210167. The next prime is 221211210203. The reversal of 221211210199 is 991012112122.

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

It is a cyclic number.

It is not a de Polignac number, because 221211210199 - 2⁵ = 221211210167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221211210199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211210139) 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, 65561802 + ... + 65565175.

It is an arithmetic number, because the mean of its divisors is an integer number (31732728676).

Almost surely, 2^221211210199 is an apocalyptic number.

221211210199 is a deficient number, since it is larger than the sum of its proper divisors (32650619209).

221211210199 is a wasteful number, since it uses less digits than its factorization.

221211210199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131127225.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 221211210199 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, one hundred ninety-nine".