10000321122221 has 4 divisors (see below), whose sum is σ = 10032895458432. Its totient is φ = 9967746786012.

The previous prime is 10000321122163. The next prime is 10000321122247. The reversal of 10000321122221 is 12222112300001.

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 not a de Polignac number, because 10000321122221 - 2⁴² = 5602274611117 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 10000321122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000321122821) 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, 16287167645 + ... + 16287168258.

It is an arithmetic number, because the mean of its divisors is an integer number (2508223864608).

Almost surely, 2^{10000321122221} is an apocalyptic number.

It is an amenable number.

10000321122221 is a deficient number, since it is larger than the sum of its proper divisors (32574336211).

10000321122221 is an equidigital number, since it uses as much as digits as its factorization.

10000321122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32574336210.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10000321122221 its reverse (12222112300001), we get a palindrome (22222433422222).

The spelling of 10000321122221 in words is "ten trillion, three hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-one".