22112201021237 has 2 divisors, whose sum is σ = 22112201021238. Its totient is φ = 22112201021236.

The previous prime is 22112201021173. The next prime is 22112201021297. The reversal of 22112201021237 is 73212010221122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21199385109841 + 912815911396 = 4604279^2 + 955414^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112201021237 - 2⁶ = 22112201021173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112201021297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056100510618 + 11056100510619.

It is an arithmetic number, because the mean of its divisors is an integer number (11056100510619).

Almost surely, 2^{22112201021237} is an apocalyptic number.

It is an amenable number.

22112201021237 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112201021237 is an equidigital number, since it uses as much as digits as its factorization.

22112201021237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 22112201021237 its reverse (73212010221122), we get a palindrome (95324211242359).

The spelling of 22112201021237 in words is "twenty-two trillion, one hundred twelve billion, two hundred one million, twenty-one thousand, two hundred thirty-seven".