10110221221091 has 2 divisors, whose sum is σ = 10110221221092. Its totient is φ = 10110221221090.

The previous prime is 10110221221063. The next prime is 10110221221127. The reversal of 10110221221091 is 19012212201101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10110221221091 is a prime.

It is a super-2 number, since 2×10110221221091² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10110221221691) 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 as a sum of consecutive naturals, namely, 5055110610545 + 5055110610546.

It is an arithmetic number, because the mean of its divisors is an integer number (5055110610546).

Almost surely, 2^{10110221221091} is an apocalyptic number.

10110221221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10110221221091 is an equidigital number, since it uses as much as digits as its factorization.

10110221221091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 10110221221091 its reverse (19012212201101), we get a palindrome (29122433422192).

The spelling of 10110221221091 in words is "ten trillion, one hundred ten billion, two hundred twenty-one million, two hundred twenty-one thousand, ninety-one".