10110221091 has 8 divisors (see below), whose sum is σ = 14978105360. Its totient is φ = 6740147376.

The previous prime is 10110221087. The next prime is 10110221101. The reversal of 10110221091 is 19012201101.

It is a happy number.

It is not a de Polignac number, because 10110221091 - 2² = 10110221087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10110221591) 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 7 ways as a sum of consecutive naturals, for example, 187226290 + ... + 187226343.

It is an arithmetic number, because the mean of its divisors is an integer number (1872263170).

Almost surely, 2^10110221091 is an apocalyptic number.

10110221091 is a deficient number, since it is larger than the sum of its proper divisors (4867884269).

10110221091 is an equidigital number, since it uses as much as digits as its factorization.

10110221091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374452642 (or 374452636 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 10110221091 its reverse (19012201101), we get a palindrome (29122422192).

The spelling of 10110221091 in words is "ten billion, one hundred ten million, two hundred twenty-one thousand, ninety-one".