40450211221 has 8 divisors (see below), whose sum is σ = 46328662784. Its totient is φ = 34596722160.

The previous prime is 40450211209. The next prime is 40450211227. The reversal of 40450211221 is 12211205404.

40450211221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40450211221 - 2⁹ = 40450210709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40450211192 and 40450211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40450211227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6237150 + ... + 6243631.

It is an arithmetic number, because the mean of its divisors is an integer number (5791082848).

Almost surely, 2^40450211221 is an apocalyptic number.

It is an amenable number.

40450211221 is a deficient number, since it is larger than the sum of its proper divisors (5878451563).

40450211221 is a wasteful number, since it uses less digits than its factorization.

40450211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12481251.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 40450211221 its reverse (12211205404), we get a palindrome (52661416625).

The spelling of 40450211221 in words is "forty billion, four hundred fifty million, two hundred eleven thousand, two hundred twenty-one".