10406332221 has 32 divisors (see below), whose sum is σ = 14894530560. Its totient is φ = 6446563200.

The previous prime is 10406332219. The next prime is 10406332283. The reversal of 10406332221 is 12223360401.

It is not a de Polignac number, because 10406332221 - 2¹ = 10406332219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10406332191 and 10406332200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10406332201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 668436 + ... + 683826.

It is an arithmetic number, because the mean of its divisors is an integer number (465454080).

Almost surely, 2^10406332221 is an apocalyptic number.

It is an amenable number.

10406332221 is a deficient number, since it is larger than the sum of its proper divisors (4488198339).

10406332221 is a wasteful number, since it uses less digits than its factorization.

10406332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15697.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 10406332221 its reverse (12223360401), we get a palindrome (22629692622).

The spelling of 10406332221 in words is "ten billion, four hundred six million, three hundred thirty-two thousand, two hundred twenty-one".