10010111331221 has 8 divisors (see below), whose sum is σ = 10210528860000. Its totient is φ = 9810718956720.

The previous prime is 10010111331203. The next prime is 10010111331271. The reversal of 10010111331221 is 12213311101001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10010111331221 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 10010111331221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010111331271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256268846 + ... + 256307903.

It is an arithmetic number, because the mean of its divisors is an integer number (1276316107500).

Almost surely, 2^{10010111331221} is an apocalyptic number.

It is an amenable number.

10010111331221 is a deficient number, since it is larger than the sum of its proper divisors (200417528779).

10010111331221 is an equidigital number, since it uses as much as digits as its factorization.

10010111331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512577139.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 10010111331221 its reverse (12213311101001), we get a palindrome (22223422432222).

The spelling of 10010111331221 in words is "ten trillion, ten billion, one hundred eleven million, three hundred thirty-one thousand, two hundred twenty-one".