10440032451221 has 8 divisors (see below), whose sum is σ = 10473989633760. Its totient is φ = 10406081705328.

The previous prime is 10440032451187. The next prime is 10440032451227. The reversal of 10440032451221 is 12215423004401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10440032451221 - 2¹⁸ = 10440032189077 is a prime.

It is a super-3 number, since 3×10440032451221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440032451227) 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, 1650770 + ... + 4858508.

It is an arithmetic number, because the mean of its divisors is an integer number (1309248704220).

Almost surely, 2^{10440032451221} is an apocalyptic number.

It is an amenable number.

10440032451221 is a deficient number, since it is larger than the sum of its proper divisors (33957182539).

10440032451221 is a wasteful number, since it uses less digits than its factorization.

10440032451221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218323.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 10440032451221 its reverse (12215423004401), we get a palindrome (22655455455622).

The spelling of 10440032451221 in words is "ten trillion, four hundred forty billion, thirty-two million, four hundred fifty-one thousand, two hundred twenty-one".