22221222253 has 2 divisors, whose sum is σ = 22221222254. Its totient is φ = 22221222252.

The previous prime is 22221222217. The next prime is 22221222259. The reversal of 22221222253 is 35222212222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22146797124 + 74425129 = 148818^2 + 8627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221222253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221222259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110611126 + 11110611127.

It is an arithmetic number, because the mean of its divisors is an integer number (11110611127).

Almost surely, 2^22221222253 is an apocalyptic number.

It is an amenable number.

22221222253 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221222253 is an equidigital number, since it uses as much as digits as its factorization.

22221222253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 25.

Adding to 22221222253 its reverse (35222212222), we get a palindrome (57443434475).

The spelling of 22221222253 in words is "twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred fifty-three".