10001100221 has 16 divisors (see below), whose sum is σ = 12129554304. Its totient is φ = 8049859584.

The previous prime is 10001100199. The next prime is 10001100223. The reversal of 10001100221 is 12200110001.

It is not a de Polignac number, because 10001100221 - 2¹⁴ = 10001083837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10001100199 and 10001100208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001100223) 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, 42140 + ... + 147573.

It is an arithmetic number, because the mean of its divisors is an integer number (758097144).

Almost surely, 2^10001100221 is an apocalyptic number.

It is an amenable number.

10001100221 is a deficient number, since it is larger than the sum of its proper divisors (2128454083).

10001100221 is a wasteful number, since it uses less digits than its factorization.

10001100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190180.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10001100221 its reverse (12200110001), we get a palindrome (22201210222).

The spelling of 10001100221 in words is "ten billion, one million, one hundred thousand, two hundred twenty-one".