222100211210201 has 2 divisors, whose sum is σ = 222100211210202. Its totient is φ = 222100211210200.

The previous prime is 222100211210191. The next prime is 222100211210237. The reversal of 222100211210201 is 102012112001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213560929148176 + 8539282062025 = 14613724^2 + 2922205^2 .

It is a cyclic number.

It is not a de Polignac number, because 222100211210201 - 2³⁸ = 221825333303257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222100211210201.

It is not a weakly prime, because it can be changed into another prime (222100211210701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050105605100 + 111050105605101.

It is an arithmetic number, because the mean of its divisors is an integer number (111050105605101).

Almost surely, 2^{222100211210201} is an apocalyptic number.

It is an amenable number.

222100211210201 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100211210201 is an equidigital number, since it uses as much as digits as its factorization.

222100211210201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222100211210201 its reverse (102012112001222), we get a palindrome (324112323211423).

The spelling of 222100211210201 in words is "two hundred twenty-two trillion, one hundred billion, two hundred eleven million, two hundred ten thousand, two hundred one".