110219363128681 has 3 divisors (see below), whose sum is σ = 110219373627223. Its totient is φ = 110219352630140.

The previous prime is 110219363128649. The next prime is 110219363128717. The reversal of 110219363128681 is 186821363912011.

The square root of 110219363128681 is 10498541.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2152942878681 + 108066420250000 = 1467291^2 + 10395500^2 .

It is not a de Polignac number, because 110219363128681 - 2⁵ = 110219363128649 is a prime.

It is a super-2 number, since 2×110219363128681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110219363128081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5249271 + ... + 15747811.

Almost surely, 2^{110219363128681} is an apocalyptic number.

110219363128681 is the 10498541-st square number.

110219363128681 is the 5249271-st centered octagonal number.

It is an amenable number.

110219363128681 is a deficient number, since it is larger than the sum of its proper divisors (10498542).

110219363128681 is an frugal number, since it uses more digits than its factorization.

110219363128681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20997082 (or 10498541 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 110219363128681 in words is "one hundred ten trillion, two hundred nineteen billion, three hundred sixty-three million, one hundred twenty-eight thousand, six hundred eighty-one".