110002222021 has 4 divisors (see below), whose sum is σ = 110015829100. Its totient is φ = 109988614944.

The previous prime is 110002221991. The next prime is 110002222039. The reversal of 110002222021 is 120222200011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120222200011 = 569 ⋅211286819.

It can be written as a sum of positive squares in 2 ways, for example, as 49412399521 + 60589822500 = 222289^2 + 246150^2 .

It is a cyclic number.

It is not a de Polignac number, because 110002222021 - 2²¹ = 110000124869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110002221992 and 110002222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110002222051) 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, 6791406 + ... + 6807583.

It is an arithmetic number, because the mean of its divisors is an integer number (27503957275).

Almost surely, 2^110002222021 is an apocalyptic number.

It is an amenable number.

110002222021 is a deficient number, since it is larger than the sum of its proper divisors (13607079).

110002222021 is an equidigital number, since it uses as much as digits as its factorization.

110002222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607078.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 110002222021 its reverse (120222200011), we get a palindrome (230224422032).

The spelling of 110002222021 in words is "one hundred ten billion, two million, two hundred twenty-two thousand, twenty-one".