221101221121199 has 2 divisors, whose sum is σ = 221101221121200. Its totient is φ = 221101221121198.

The previous prime is 221101221121139. The next prime is 221101221121223. The reversal of 221101221121199 is 991121122101122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221101221121199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221101221121139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550610560599 + 110550610560600.

It is an arithmetic number, because the mean of its divisors is an integer number (110550610560600).

Almost surely, 2^{221101221121199} is an apocalyptic number.

221101221121199 is a deficient number, since it is larger than the sum of its proper divisors (1).

221101221121199 is an equidigital number, since it uses as much as digits as its factorization.

221101221121199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 221101221121199 in words is "two hundred twenty-one trillion, one hundred one billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred ninety-nine".