110201921 has 2 divisors, whose sum is σ = 110201922. Its totient is φ = 110201920.

The previous prime is 110201867. The next prime is 110201933. The reversal of 110201921 is 129102011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109411600 + 790321 = 10460^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 110201921 - 2¹⁰ = 110200897 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110201921.

It is not a weakly prime, because it can be changed into another prime (110201941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55100960 + 55100961.

It is an arithmetic number, because the mean of its divisors is an integer number (55100961).

Almost surely, 2^110201921 is an apocalyptic number.

It is an amenable number.

110201921 is a deficient number, since it is larger than the sum of its proper divisors (1).

110201921 is an equidigital number, since it uses as much as digits as its factorization.

110201921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 110201921 is about 10497.7102741503. The cubic root of 110201921 is about 479.4349847679.

Adding to 110201921 its reverse (129102011), we get a palindrome (239303932).

The spelling of 110201921 in words is "one hundred ten million, two hundred one thousand, nine hundred twenty-one".