110110222221 has 4 divisors (see below), whose sum is σ = 146813629632. Its totient is φ = 73406814812.

The previous prime is 110110222217. The next prime is 110110222231. The reversal of 110110222221 is 122222011011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110110222221 - 2² = 110110222217 is a prime.

It is a super-2 number, since 2×110110222221² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 110110222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110110222231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18351703701 + ... + 18351703706.

It is an arithmetic number, because the mean of its divisors is an integer number (36703407408).

Almost surely, 2^110110222221 is an apocalyptic number.

It is an amenable number.

110110222221 is a deficient number, since it is larger than the sum of its proper divisors (36703407411).

110110222221 is an equidigital number, since it uses as much as digits as its factorization.

110110222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36703407410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 110110222221 its reverse (122222011011), we get a palindrome (232332233232).

The spelling of 110110222221 in words is "one hundred ten billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".