2320022111221 has 2 divisors, whose sum is σ = 2320022111222. Its totient is φ = 2320022111220.

The previous prime is 2320022111161. The next prime is 2320022111237. The reversal of 2320022111221 is 1221112200232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2315601324100 + 4420787121 = 1521710^2 + 66489^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320022111221 - 2⁷ = 2320022111093 is a prime.

It is a super-2 number, since 2×2320022111221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320022111321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160011055610 + 1160011055611.

It is an arithmetic number, because the mean of its divisors is an integer number (1160011055611).

Almost surely, 2^{2320022111221} is an apocalyptic number.

It is an amenable number.

2320022111221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320022111221 is an equidigital number, since it uses as much as digits as its factorization.

2320022111221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2320022111221 its reverse (1221112200232), we get a palindrome (3541134311453).

The spelling of 2320022111221 in words is "two trillion, three hundred twenty billion, twenty-two million, one hundred eleven thousand, two hundred twenty-one".