40244221223 has 4 divisors (see below), whose sum is σ = 40244850360. Its totient is φ = 40243592088.

The previous prime is 40244221217. The next prime is 40244221247. The reversal of 40244221223 is 32212244204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40244221223 - 2²⁰ = 40243172647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40244221192 and 40244221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244226223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206165 + ... + 350702.

It is an arithmetic number, because the mean of its divisors is an integer number (10061212590).

Almost surely, 2^40244221223 is an apocalyptic number.

40244221223 is a deficient number, since it is larger than the sum of its proper divisors (629137).

40244221223 is an equidigital number, since it uses as much as digits as its factorization.

40244221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629136.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40244221223 its reverse (32212244204), we get a palindrome (72456465427).

The spelling of 40244221223 in words is "forty billion, two hundred forty-four million, two hundred twenty-one thousand, two hundred twenty-three".