110102220021 has 4 divisors (see below), whose sum is σ = 146802960032. Its totient is φ = 73401480012.

The previous prime is 110102220017. The next prime is 110102220029. The reversal of 110102220021 is 120022201011.

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 not a de Polignac number, because 110102220021 - 2² = 110102220017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110102219979 and 110102220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110102220029) 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 3 ways as a sum of consecutive naturals, for example, 18350370001 + ... + 18350370006.

It is an arithmetic number, because the mean of its divisors is an integer number (36700740008).

Almost surely, 2^110102220021 is an apocalyptic number.

It is an amenable number.

110102220021 is a deficient number, since it is larger than the sum of its proper divisors (36700740011).

110102220021 is an equidigital number, since it uses as much as digits as its factorization.

110102220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36700740010.

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

Adding to 110102220021 its reverse (120022201011), we get a palindrome (230124421032).

The spelling of 110102220021 in words is "one hundred ten billion, one hundred two million, two hundred twenty thousand, twenty-one".