222011201 has 2 divisors, whose sum is σ = 222011202. Its totient is φ = 222011200.

The previous prime is 222011191. The next prime is 222011261. The reversal of 222011201 is 102110222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213130801 + 8880400 = 14599^2 + 2980^2 .

It is a cyclic number.

It is not a de Polignac number, because 222011201 - 2¹⁰ = 222010177 is a prime.

It is not a weakly prime, because it can be changed into another prime (222011261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005600 + 111005601.

It is an arithmetic number, because the mean of its divisors is an integer number (111005601).

Almost surely, 2^222011201 is an apocalyptic number.

It is an amenable number.

222011201 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011201 is an equidigital number, since it uses as much as digits as its factorization.

222011201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 222011201 is about 14900.0403019589. The cubic root of 222011201 is about 605.5150780539.

Adding to 222011201 its reverse (102110222), we get a palindrome (324121423).

The spelling of 222011201 in words is "two hundred twenty-two million, eleven thousand, two hundred one".