2253144221 has 2 divisors, whose sum is σ = 2253144222. Its totient is φ = 2253144220.

The previous prime is 2253144199. The next prime is 2253144247. The reversal of 2253144221 is 1224413522.

It is an a-pointer prime, because the next prime (2253144247) can be obtained adding 2253144221 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2153424025 + 99720196 = 46405^2 + 9986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2253144221 - 2¹⁴ = 2253127837 is a prime.

It is a super-3 number, since 3×2253144221³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2253144121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1126572110 + 1126572111.

It is an arithmetic number, because the mean of its divisors is an integer number (1126572111).

Almost surely, 2^2253144221 is an apocalyptic number.

It is an amenable number.

2253144221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2253144221 is an equidigital number, since it uses as much as digits as its factorization.

2253144221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 26.

The square root of 2253144221 is about 47467.2963312637. The cubic root of 2253144221 is about 1310.9807974553.

Adding to 2253144221 its reverse (1224413522), we get a palindrome (3477557743).

The spelling of 2253144221 in words is "two billion, two hundred fifty-three million, one hundred forty-four thousand, two hundred twenty-one".