22112221221253 has 2 divisors, whose sum is σ = 22112221221254. Its totient is φ = 22112221221252.

The previous prime is 22112221221197. The next prime is 22112221221257. The reversal of 22112221221253 is 35212212221122.

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., 18661164500449 + 3451056720804 = 4319857^2 + 1857702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112221221253 is a prime.

It is a super-3 number, since 3×22112221221253³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22112221221257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056110610626 + 11056110610627.

It is an arithmetic number, because the mean of its divisors is an integer number (11056110610627).

Almost surely, 2^{22112221221253} is an apocalyptic number.

It is an amenable number.

22112221221253 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112221221253 is an equidigital number, since it uses as much as digits as its factorization.

22112221221253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

Adding to 22112221221253 its reverse (35212212221122), we get a palindrome (57324433442375).

The spelling of 22112221221253 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred fifty-three".