110000002221 has 12 divisors (see below), whose sum is σ = 163183186972. Its totient is φ = 71351352576.

The previous prime is 110000002201. The next prime is 110000002237. The reversal of 110000002221 is 122200000011.

It can be written as a sum of positive squares in 2 ways, for example, as 63408779721 + 46591222500 = 251811^2 + 215850^2 .

It is not a de Polignac number, because 110000002221 - 2¹⁰ = 110000001197 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000002201) 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, 165164836 + ... + 165165501.

Almost surely, 2^110000002221 is an apocalyptic number.

It is an amenable number.

110000002221 is a deficient number, since it is larger than the sum of its proper divisors (53183184751).

110000002221 is a wasteful number, since it uses less digits than its factorization.

110000002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330330380 (or 330330377 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 110000002221 its reverse (122200000011), we get a palindrome (232200002232).

The spelling of 110000002221 in words is "one hundred ten billion, two thousand, two hundred twenty-one".