400244022223 has 2 divisors, whose sum is σ = 400244022224. Its totient is φ = 400244022222.

The previous prime is 400244022197. The next prime is 400244022229. The reversal of 400244022223 is 322220442004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400244022223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400244022229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200122011111 + 200122011112.

It is an arithmetic number, because the mean of its divisors is an integer number (200122011112).

Almost surely, 2^400244022223 is an apocalyptic number.

400244022223 is a deficient number, since it is larger than the sum of its proper divisors (1).

400244022223 is an equidigital number, since it uses as much as digits as its factorization.

400244022223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 400244022223 its reverse (322220442004), we get a palindrome (722464464227).

The spelling of 400244022223 in words is "four hundred billion, two hundred forty-four million, twenty-two thousand, two hundred twenty-three".