10002102222221 has 4 divisors (see below), whose sum is σ = 10004033508000. Its totient is φ = 10000170936444.

The previous prime is 10002102222179. The next prime is 10002102222247. The reversal of 10002102222221 is 12222220120001.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-10002102222221 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 10002102222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002102222271) 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, 965635121 + ... + 965645478.

It is an arithmetic number, because the mean of its divisors is an integer number (2501008377000).

Almost surely, 2^{10002102222221} is an apocalyptic number.

It is an amenable number.

10002102222221 is a deficient number, since it is larger than the sum of its proper divisors (1931285779).

10002102222221 is an equidigital number, since it uses as much as digits as its factorization.

10002102222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931285778.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10002102222221 its reverse (12222220120001), we get a palindrome (22224322342222).

The spelling of 10002102222221 in words is "ten trillion, two billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty-one".