10002122222221 has 8 divisors (see below), whose sum is σ = 10437488003520. Its totient is φ = 9566797349472.

The previous prime is 10002122222219. The next prime is 10002122222243. The reversal of 10002122222221 is 12222222120001.

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 10002122222221 - 2¹ = 10002122222219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002122222251) 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, 9726976 + ... + 10705993.

It is an arithmetic number, because the mean of its divisors is an integer number (1304686000440).

Almost surely, 2^{10002122222221} is an apocalyptic number.

It is an amenable number.

10002122222221 is a deficient number, since it is larger than the sum of its proper divisors (435365781299).

10002122222221 is a wasteful number, since it uses less digits than its factorization.

10002122222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20454275.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10002122222221 its reverse (12222222120001), we get a palindrome (22224344342222).

The spelling of 10002122222221 in words is "ten trillion, two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-one".