220122111247 has 2 divisors, whose sum is σ = 220122111248. Its totient is φ = 220122111246.

The previous prime is 220122111233. The next prime is 220122111257. The reversal of 220122111247 is 742111221022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220122111247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220122111227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061055623 + 110061055624.

It is an arithmetic number, because the mean of its divisors is an integer number (110061055624).

Almost surely, 2^220122111247 is an apocalyptic number.

220122111247 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122111247 is an equidigital number, since it uses as much as digits as its factorization.

220122111247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 220122111247 its reverse (742111221022), we get a palindrome (962233332269).

The spelling of 220122111247 in words is "two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, two hundred forty-seven".