22211122111201 has 2 divisors, whose sum is σ = 22211122111202. Its totient is φ = 22211122111200.

The previous prime is 22211122111193. The next prime is 22211122111223. The reversal of 22211122111201 is 10211122111222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22171431909025 + 39690202176 = 4708655^2 + 199224^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211122111201 - 2³ = 22211122111193 is a prime.

It is not a weakly prime, because it can be changed into another prime (22211122111261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105561055600 + 11105561055601.

It is an arithmetic number, because the mean of its divisors is an integer number (11105561055601).

Almost surely, 2^{22211122111201} is an apocalyptic number.

It is an amenable number.

22211122111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211122111201 is an equidigital number, since it uses as much as digits as its factorization.

22211122111201 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 19.

Adding to 22211122111201 its reverse (10211122111222), we get a palindrome (32422244222423).

The spelling of 22211122111201 in words is "twenty-two trillion, two hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, two hundred one".