110112131123221 has 2 divisors, whose sum is σ = 110112131123222. Its totient is φ = 110112131123220.

The previous prime is 110112131123179. The next prime is 110112131123251. The reversal of 110112131123221 is 122321131211011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109670344914321 + 441786208900 = 10472361^2 + 664670^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112131123221 - 2¹⁵ = 110112131090453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110112131123192 and 110112131123201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110112131123251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55056065561610 + 55056065561611.

It is an arithmetic number, because the mean of its divisors is an integer number (55056065561611).

Almost surely, 2^{110112131123221} is an apocalyptic number.

It is an amenable number.

110112131123221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110112131123221 is an equidigital number, since it uses as much as digits as its factorization.

110112131123221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 110112131123221 its reverse (122321131211011), we get a palindrome (232433262334232).

The spelling of 110112131123221 in words is "one hundred ten trillion, one hundred twelve billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred twenty-one".