222421303140247 has 2 divisors, whose sum is σ = 222421303140248. Its totient is φ = 222421303140246.

The previous prime is 222421303140221. The next prime is 222421303140271. The reversal of 222421303140247 is 742041303124222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222421303140247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222421303140277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111210651570123 + 111210651570124.

It is an arithmetic number, because the mean of its divisors is an integer number (111210651570124).

Almost surely, 2^{222421303140247} is an apocalyptic number.

222421303140247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222421303140247 is an equidigital number, since it uses as much as digits as its factorization.

222421303140247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 37.

Adding to 222421303140247 its reverse (742041303124222), we get a palindrome (964462606264469).

The spelling of 222421303140247 in words is "two hundred twenty-two trillion, four hundred twenty-one billion, three hundred three million, one hundred forty thousand, two hundred forty-seven".