222110001021001 has 2 divisors, whose sum is σ = 222110001021002. Its totient is φ = 222110001021000.

The previous prime is 222110001020983. The next prime is 222110001021011. The reversal of 222110001021001 is 100120100011222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121314826518601 + 100795174502400 = 11014301^2 + 10039680^2 .

It is a cyclic number.

It is not a de Polignac number, because 222110001021001 - 2¹⁵ = 222110000988233 is a prime.

It is not a weakly prime, because it can be changed into another prime (222110001021011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055000510500 + 111055000510501.

It is an arithmetic number, because the mean of its divisors is an integer number (111055000510501).

Almost surely, 2^{222110001021001} is an apocalyptic number.

It is an amenable number.

222110001021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

222110001021001 is an equidigital number, since it uses as much as digits as its factorization.

222110001021001 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 13.

Adding to 222110001021001 its reverse (100120100011222), we get a palindrome (322230101032223).

The spelling of 222110001021001 in words is "two hundred twenty-two trillion, one hundred ten billion, one million, twenty-one thousand, one".