222221121202601 has 2 divisors, whose sum is σ = 222221121202602. Its totient is φ = 222221121202600.

The previous prime is 222221121202499. The next prime is 222221121202657. The reversal of 222221121202601 is 106202121122222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220394095896976 + 1827025305625 = 14845676^2 + 1351675^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221121202601 - 2¹⁸ = 222221120940457 is a prime.

It is not a weakly prime, because it can be changed into another prime (222221121207601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110560601300 + 111110560601301.

It is an arithmetic number, because the mean of its divisors is an integer number (111110560601301).

Almost surely, 2^{222221121202601} is an apocalyptic number.

It is an amenable number.

222221121202601 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221121202601 is an equidigital number, since it uses as much as digits as its factorization.

222221121202601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 222221121202601 its reverse (106202121122222), we get a palindrome (328423242324823).

The spelling of 222221121202601 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, six hundred one".