222202221220201 has 2 divisors, whose sum is σ = 222202221220202. Its totient is φ = 222202221220200.

The previous prime is 222202221220123. The next prime is 222202221220241. The reversal of 222202221220201 is 102022122202222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190780321905625 + 31421899314576 = 13812325^2 + 5605524^2 .

It is a cyclic number.

It is not a de Polignac number, because 222202221220201 - 2⁷ = 222202221220073 is a prime.

It is a super-2 number, since 2×222202221220201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222202221220241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111101110610100 + 111101110610101.

It is an arithmetic number, because the mean of its divisors is an integer number (111101110610101).

Almost surely, 2^{222202221220201} is an apocalyptic number.

It is an amenable number.

222202221220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

222202221220201 is an equidigital number, since it uses as much as digits as its factorization.

222202221220201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222202221220201 its reverse (102022122202222), we get a palindrome (324224343422423).

The spelling of 222202221220201 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred one".