921102223 has 2 divisors, whose sum is σ = 921102224. Its totient is φ = 921102222.

The previous prime is 921102209. The next prime is 921102227. The reversal of 921102223 is 322201129.

It is a strong prime.

It is an emirp because it is prime and its reverse (322201129) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 921102223 - 2⁵ = 921102191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 921102194 and 921102203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (921102227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460551111 + 460551112.

It is an arithmetic number, because the mean of its divisors is an integer number (460551112).

Almost surely, 2^921102223 is an apocalyptic number.

921102223 is a deficient number, since it is larger than the sum of its proper divisors (1).

921102223 is an equidigital number, since it uses as much as digits as its factorization.

921102223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 921102223 is about 30349.6659454433. The cubic root of 921102223 is about 972.9770805467.

The spelling of 921102223 in words is "nine hundred twenty-one million, one hundred two thousand, two hundred twenty-three".