1110100221 has 40 divisors (see below), whose sum is σ = 1832238144. Its totient is φ = 666230400.

The previous prime is 1110100219. The next prime is 1110100231. The reversal of 1110100221 is 1220010111.

It is a happy number.

It is not a de Polignac number, because 1110100221 - 2¹ = 1110100219 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 (1110100231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14146 + ... + 49196.

Almost surely, 2^1110100221 is an apocalyptic number.

It is an amenable number.

1110100221 is a deficient number, since it is larger than the sum of its proper divisors (722137923).

1110100221 is a wasteful number, since it uses less digits than its factorization.

1110100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35103 (or 35094 counting only the distinct ones).

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

The square root of 1110100221 is about 33318.1665311884. The cubic root of 1110100221 is about 1035.4299662835.

Adding to 1110100221 its reverse (1220010111), we get a palindrome (2330110332).

The spelling of 1110100221 in words is "one billion, one hundred ten million, one hundred thousand, two hundred twenty-one".