221201211199 has 2 divisors, whose sum is σ = 221201211200. Its totient is φ = 221201211198.

The previous prime is 221201211137. The next prime is 221201211239. The reversal of 221201211199 is 991112102122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221201211199 - 2²⁷ = 221066993471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221201211199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221201211799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600605599 + 110600605600.

It is an arithmetic number, because the mean of its divisors is an integer number (110600605600).

Almost surely, 2^221201211199 is an apocalyptic number.

221201211199 is a deficient number, since it is larger than the sum of its proper divisors (1).

221201211199 is an equidigital number, since it uses as much as digits as its factorization.

221201211199 is an evil number, because the sum of its binary digits is even.

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

The spelling of 221201211199 in words is "two hundred twenty-one billion, two hundred one million, two hundred eleven thousand, one hundred ninety-nine".