10404313421221 has 32 divisors (see below), whose sum is σ = 11146776560640. Its totient is φ = 9696343910400.

The previous prime is 10404313421179. The next prime is 10404313421263. The reversal of 10404313421221 is 12212431340401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10404313421179) and next prime (10404313421263).

It is a cyclic number.

It is not a de Polignac number, because 10404313421221 - 2¹⁹ = 10404312896933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10404313421221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10404313425221) 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, 25539885 + ... + 25944061.

It is an arithmetic number, because the mean of its divisors is an integer number (348336767520).

Almost surely, 2^{10404313421221} is an apocalyptic number.

It is an amenable number.

10404313421221 is a deficient number, since it is larger than the sum of its proper divisors (742463139419).

10404313421221 is a wasteful number, since it uses less digits than its factorization.

10404313421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404565.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 10404313421221 its reverse (12212431340401), we get a palindrome (22616744761622).

The spelling of 10404313421221 in words is "ten trillion, four hundred four billion, three hundred thirteen million, four hundred twenty-one thousand, two hundred twenty-one".