110221221020 has 96 divisors (see below), whose sum is σ = 236991763008. Its totient is φ = 43049705472.

The previous prime is 110221220999. The next prime is 110221221031. The reversal of 110221221020 is 20122122011.

It is a junction number, because it is equal to n+sod(n) for n = 110221220986 and 110221221004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128612432 + ... + 128613288.

It is an arithmetic number, because the mean of its divisors is an integer number (2468664198).

Almost surely, 2^110221221020 is an apocalyptic number.

110221221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110221221020 is an abundant number, since it is smaller than the sum of its proper divisors (126770541988).

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

110221221020 is a wasteful number, since it uses less digits than its factorization.

110221221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 110221221020 its reverse (20122122011), we get a palindrome (130343343031).

Subtracting from 110221221020 its reverse (20122122011), we obtain a palindrome (90099099009).

The spelling of 110221221020 in words is "one hundred ten billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty".