110421881 has 2 divisors, whose sum is σ = 110421882. Its totient is φ = 110421880.

The previous prime is 110421877. The next prime is 110421889. The reversal of 110421881 is 188124011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89946256 + 20475625 = 9484^2 + 4525^2 .

It is a cyclic number.

It is not a de Polignac number, because 110421881 - 2² = 110421877 is a prime.

It is a super-2 number, since 2×110421881² = 24385983607156322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110421881.

It is not a weakly prime, because it can be changed into another prime (110421889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55210940 + 55210941.

It is an arithmetic number, because the mean of its divisors is an integer number (55210941).

Almost surely, 2^110421881 is an apocalyptic number.

It is an amenable number.

110421881 is a deficient number, since it is larger than the sum of its proper divisors (1).

110421881 is an equidigital number, since it uses as much as digits as its factorization.

110421881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 110421881 is about 10508.1816219553. The cubic root of 110421881 is about 479.7537524543.

Adding to 110421881 its reverse (188124011), we get a palindrome (298545892).

The spelling of 110421881 in words is "one hundred ten million, four hundred twenty-one thousand, eight hundred eighty-one".