221110122 has 16 divisors (see below), whose sum is σ = 442681920. Its totient is φ = 73626432.

The previous prime is 221110103. The next prime is 221110129. The reversal of 221110122 is 221011122.

It is a junction number, because it is equal to n+sod(n) for n = 221110098 and 221110107.

It is not an unprimeable number, because it can be changed into a prime (221110129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12847 + ... + 24642.

It is an arithmetic number, because the mean of its divisors is an integer number (27667620).

Almost surely, 2^221110122 is an apocalyptic number.

221110122 is an abundant number, since it is smaller than the sum of its proper divisors (221571798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221110122 is a wasteful number, since it uses less digits than its factorization.

221110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38477.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 221110122 is about 14869.7720897127. The cubic root of 221110122 is about 604.6947639520.

Adding to 221110122 its reverse (221011122), we get a palindrome (442121244).

The spelling of 221110122 in words is "two hundred twenty-one million, one hundred ten thousand, one hundred twenty-two".