24223212997 has 2 divisors, whose sum is σ = 24223212998. Its totient is φ = 24223212996.

The previous prime is 24223212973. The next prime is 24223213043. The reversal of 24223212997 is 79921232242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22284219841 + 1938993156 = 149279^2 + 44034^2 .

It is a cyclic number.

It is not a de Polignac number, because 24223212997 - 2¹⁵ = 24223180229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24223212907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12111606498 + 12111606499.

It is an arithmetic number, because the mean of its divisors is an integer number (12111606499).

Almost surely, 2^24223212997 is an apocalyptic number.

It is an amenable number.

24223212997 is a deficient number, since it is larger than the sum of its proper divisors (1).

24223212997 is an equidigital number, since it uses as much as digits as its factorization.

24223212997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The spelling of 24223212997 in words is "twenty-four billion, two hundred twenty-three million, two hundred twelve thousand, nine hundred ninety-seven".