2221231168253 has 2 divisors, whose sum is σ = 2221231168254. Its totient is φ = 2221231168252.

The previous prime is 2221231168223. The next prime is 2221231168339. The reversal of 2221231168253 is 3528611321222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1274467139929 + 946764028324 = 1128923^2 + 973018^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221231168253 - 2²² = 2221226973949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221231168213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110615584126 + 1110615584127.

It is an arithmetic number, because the mean of its divisors is an integer number (1110615584127).

Almost surely, 2^{2221231168253} is an apocalyptic number.

It is an amenable number.

2221231168253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221231168253 is an equidigital number, since it uses as much as digits as its factorization.

2221231168253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

Adding to 2221231168253 its reverse (3528611321222), we get a palindrome (5749842489475).

The spelling of 2221231168253 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred sixty-eight thousand, two hundred fifty-three".