110221221329 has 2 divisors, whose sum is σ = 110221221330. Its totient is φ = 110221221328.

The previous prime is 110221221293. The next prime is 110221221337. The reversal of 110221221329 is 923122122011.

Together with previous prime (110221221293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83722265104 + 26498956225 = 289348^2 + 162785^2 .

It is a cyclic number.

It is not a de Polignac number, because 110221221329 - 2²⁴ = 110204444113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110221221298 and 110221221307.

It is not a weakly prime, because it can be changed into another prime (110221221829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110610664 + 55110610665.

It is an arithmetic number, because the mean of its divisors is an integer number (55110610665).

Almost surely, 2^110221221329 is an apocalyptic number.

It is an amenable number.

110221221329 is a deficient number, since it is larger than the sum of its proper divisors (1).

110221221329 is an equidigital number, since it uses as much as digits as its factorization.

110221221329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 110221221329 in words is "one hundred ten billion, two hundred twenty-one million, two hundred twenty-one thousand, three hundred twenty-nine".