221112431230253 has 2 divisors, whose sum is σ = 221112431230254. Its totient is φ = 221112431230252.

The previous prime is 221112431230189. The next prime is 221112431230261. The reversal of 221112431230253 is 352032134211122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218302338903364 + 2810092326889 = 14775058^2 + 1676333^2 .

It is a cyclic number.

It is not a de Polignac number, because 221112431230253 - 2⁶ = 221112431230189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221112431236253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556215615126 + 110556215615127.

It is an arithmetic number, because the mean of its divisors is an integer number (110556215615127).

Almost surely, 2^{221112431230253} is an apocalyptic number.

It is an amenable number.

221112431230253 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112431230253 is an equidigital number, since it uses as much as digits as its factorization.

221112431230253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 221112431230253 its reverse (352032134211122), we get a palindrome (573144565441375).

The spelling of 221112431230253 in words is "two hundred twenty-one trillion, one hundred twelve billion, four hundred thirty-one million, two hundred thirty thousand, two hundred fifty-three".