10001100102221 has 16 divisors (see below), whose sum is σ = 11050069745664. Its totient is φ = 9003335303424.

The previous prime is 10001100102211. The next prime is 10001100102269. The reversal of 10001100102221 is 12220100110001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001100102221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001100102211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17637695 + ... + 18195891.

It is an arithmetic number, because the mean of its divisors is an integer number (690629359104).

Almost surely, 2^{10001100102221} is an apocalyptic number.

It is an amenable number.

10001100102221 is a deficient number, since it is larger than the sum of its proper divisors (1048969643443).

10001100102221 is a wasteful number, since it uses less digits than its factorization.

10001100102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604060.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10001100102221 its reverse (12220100110001), we get a palindrome (22221200212222).

The spelling of 10001100102221 in words is "ten trillion, one billion, one hundred million, one hundred two thousand, two hundred twenty-one".