110022021 has 6 divisors (see below), whose sum is σ = 158920710. Its totient is φ = 73348008.

The previous prime is 110022013. The next prime is 110022049. The reversal of 110022021 is 120220011.

It can be written as a sum of positive squares in only one way, i.e., 90041121 + 19980900 = 9489^2 + 4470^2 .

It is not a de Polignac number, because 110022021 - 2³ = 110022013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 12224669 = 110022021 / (1 + 1 + 0 + 0 + 2 + 2 + 0 + 2 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 110021994 and 110022012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110022071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6112326 + ... + 6112343.

It is an arithmetic number, because the mean of its divisors is an integer number (26486785).

Almost surely, 2^110022021 is an apocalyptic number.

It is an amenable number.

110022021 is a deficient number, since it is larger than the sum of its proper divisors (48898689).

110022021 is a wasteful number, since it uses less digits than its factorization.

110022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12224675 (or 12224672 counting only the distinct ones).

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

The square root of 110022021 is about 10489.1382391501. The cubic root of 110022021 is about 479.1739568628.

Adding to 110022021 its reverse (120220011), we get a palindrome (230242032).

The spelling of 110022021 in words is "one hundred ten million, twenty-two thousand, twenty-one".