110221031 has 2 divisors, whose sum is σ = 110221032. Its totient is φ = 110221030.

The previous prime is 110221019. The next prime is 110221049. The reversal of 110221031 is 130122011.

It is a weak prime.

It is an emirp because it is prime and its reverse (130122011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110221031 is a prime.

It is a super-2 number, since 2×110221031² = 24297351349405922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110515 + 55110516.

It is an arithmetic number, because the mean of its divisors is an integer number (55110516).

Almost surely, 2^110221031 is an apocalyptic number.

110221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

110221031 is an equidigital number, since it uses as much as digits as its factorization.

110221031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 110221031 is about 10498.6204331807. The cubic root of 110221031 is about 479.4626959395.

Adding to 110221031 its reverse (130122011), we get a palindrome (240343042).

The spelling of 110221031 in words is "one hundred ten million, two hundred twenty-one thousand, thirty-one".