110022211021 has 4 divisors (see below), whose sum is σ = 110043224892. Its totient is φ = 110001197152.

The previous prime is 110022211009. The next prime is 110022211067. The reversal of 110022211021 is 120112220011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78733554025 + 31288656996 = 280595^2 + 176886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110022211021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110022210992 and 110022211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110022211081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10499080 + ... + 10509553.

It is an arithmetic number, because the mean of its divisors is an integer number (27510806223).

Almost surely, 2^110022211021 is an apocalyptic number.

It is an amenable number.

110022211021 is a deficient number, since it is larger than the sum of its proper divisors (21013871).

110022211021 is an equidigital number, since it uses as much as digits as its factorization.

110022211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21013870.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110022211021 its reverse (120112220011), we get a palindrome (230134431032).

The spelling of 110022211021 in words is "one hundred ten billion, twenty-two million, two hundred eleven thousand, twenty-one".