10001110221 has 12 divisors (see below), whose sum is σ = 14486976348. Its totient is φ = 6648516864.

The previous prime is 10001110177. The next prime is 10001110241. The reversal of 10001110221 is 12201110001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3435249321 + 6565860900 = 58611^2 + 81030^2 .

It is not a de Polignac number, because 10001110221 - 2⁹ = 10001109709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001110241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1570810 + ... + 1577163.

It is an arithmetic number, because the mean of its divisors is an integer number (1207248029).

Almost surely, 2^10001110221 is an apocalyptic number.

It is an amenable number.

10001110221 is a deficient number, since it is larger than the sum of its proper divisors (4485866127).

10001110221 is a wasteful number, since it uses less digits than its factorization.

10001110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148332 (or 3148329 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10001110221 its reverse (12201110001), we get a palindrome (22202220222).

The spelling of 10001110221 in words is "ten billion, one million, one hundred ten thousand, two hundred twenty-one".