201122221243 has 2 divisors, whose sum is σ = 201122221244. Its totient is φ = 201122221242.

The previous prime is 201122221207. The next prime is 201122221253. The reversal of 201122221243 is 342122221102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201122221243 - 2⁹ = 201122220731 is a prime.

It is not a weakly prime, because it can be changed into another prime (201122221253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561110621 + 100561110622.

It is an arithmetic number, because the mean of its divisors is an integer number (100561110622).

Almost surely, 2^201122221243 is an apocalyptic number.

201122221243 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122221243 is an equidigital number, since it uses as much as digits as its factorization.

201122221243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201122221243 its reverse (342122221102), we get a palindrome (543244442345).

The spelling of 201122221243 in words is "two hundred one billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred forty-three".