40004310221 has 4 divisors (see below), whose sum is σ = 40115743200. Its totient is φ = 39892877244.

The previous prime is 40004310211. The next prime is 40004310233. The reversal of 40004310221 is 12201340004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40004310221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40004310221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004310211) 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, 55715951 + ... + 55716668.

It is an arithmetic number, because the mean of its divisors is an integer number (10028935800).

Almost surely, 2^40004310221 is an apocalyptic number.

It is an amenable number.

40004310221 is a deficient number, since it is larger than the sum of its proper divisors (111432979).

40004310221 is a wasteful number, since it uses less digits than its factorization.

40004310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111432978.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 40004310221 its reverse (12201340004), we get a palindrome (52205650225).

The spelling of 40004310221 in words is "forty billion, four million, three hundred ten thousand, two hundred twenty-one".