110021221100 has 72 divisors (see below), whose sum is σ = 272928864768. Its totient is φ = 37711022400.

The previous prime is 110021221067. The next prime is 110021221103. The reversal of 110021221100 is 1122120011.

It is not an unprimeable number, because it can be changed into a prime (110021221103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2731709 + ... + 2771691.

Almost surely, 2^110021221100 is an apocalyptic number.

110021221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110021221100 is an abundant number, since it is smaller than the sum of its proper divisors (162907643668).

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

110021221100 is a wasteful number, since it uses less digits than its factorization.

110021221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43935 (or 43928 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 110021221100 its reverse (1122120011), we get a palindrome (111143341111).

The spelling of 110021221100 in words is "one hundred ten billion, twenty-one million, two hundred twenty-one thousand, one hundred".