221600983193 has 4 divisors (see below), whose sum is σ = 222483855888. Its totient is φ = 220718110500.

The previous prime is 221600983181. The next prime is 221600983213. The reversal of 221600983193 is 391389006122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221600983193 - 2⁸ = 221600982937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221600989193) 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, 441435971 + ... + 441436472.

It is an arithmetic number, because the mean of its divisors is an integer number (55620963972).

Almost surely, 2^221600983193 is an apocalyptic number.

It is an amenable number.

221600983193 is a deficient number, since it is larger than the sum of its proper divisors (882872695).

221600983193 is an equidigital number, since it uses as much as digits as its factorization.

221600983193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882872694.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 221600983193 in words is "two hundred twenty-one billion, six hundred million, nine hundred eighty-three thousand, one hundred ninety-three".