220040400247 has 2 divisors, whose sum is σ = 220040400248. Its totient is φ = 220040400246.

The previous prime is 220040400233. The next prime is 220040400301. The reversal of 220040400247 is 742004040022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220040400247 is a prime.

It is a super-2 number, since 2×220040400247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220040400347) 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, 110020200123 + 110020200124.

It is an arithmetic number, because the mean of its divisors is an integer number (110020200124).

Almost surely, 2^220040400247 is an apocalyptic number.

220040400247 is a deficient number, since it is larger than the sum of its proper divisors (1).

220040400247 is an equidigital number, since it uses as much as digits as its factorization.

220040400247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 25.

Adding to 220040400247 its reverse (742004040022), we get a palindrome (962044440269).

The spelling of 220040400247 in words is "two hundred twenty billion, forty million, four hundred thousand, two hundred forty-seven".