110000220021 has 8 divisors (see below), whose sum is σ = 162963288960. Its totient is φ = 73333479996.

The previous prime is 110000220013. The next prime is 110000220037. The reversal of 110000220021 is 120022000011.

It is not a de Polignac number, because 110000220021 - 2³ = 110000220013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 110000219985 and 110000220012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000220061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2037041085 + ... + 2037041138.

It is an arithmetic number, because the mean of its divisors is an integer number (20370411120).

Almost surely, 2^110000220021 is an apocalyptic number.

It is an amenable number.

110000220021 is a deficient number, since it is larger than the sum of its proper divisors (52963068939).

110000220021 is an equidigital number, since it uses as much as digits as its factorization.

110000220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074082232 (or 4074082226 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 110000220021 its reverse (120022000011), we get a palindrome (230022220032).

The spelling of 110000220021 in words is "one hundred ten billion, two hundred twenty thousand, twenty-one".