2221120111201 has 2 divisors, whose sum is σ = 2221120111202. Its totient is φ = 2221120111200.

The previous prime is 2221120111193. The next prime is 2221120111207. The reversal of 2221120111201 is 1021110211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1112993350225 + 1108126760976 = 1054985^2 + 1052676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221120111201 - 2³ = 2221120111193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221120111207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110560055600 + 1110560055601.

It is an arithmetic number, because the mean of its divisors is an integer number (1110560055601).

Almost surely, 2^{2221120111201} is an apocalyptic number.

It is an amenable number.

2221120111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221120111201 is an equidigital number, since it uses as much as digits as its factorization.

2221120111201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2221120111201 its reverse (1021110211222), we get a palindrome (3242230322423).

The spelling of 2221120111201 in words is "two trillion, two hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand, two hundred one".