22221833 has 2 divisors, whose sum is σ = 22221834. Its totient is φ = 22221832.

The previous prime is 22221817. The next prime is 22221847. The reversal of 22221833 is 33812222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14807104 + 7414729 = 3848^2 + 2723^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221833 - 2⁴ = 22221817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221799 and 22221808.

It is not a weakly prime, because it can be changed into another prime (22221853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110916 + 11110917.

It is an arithmetic number, because the mean of its divisors is an integer number (11110917).

Almost surely, 2^22221833 is an apocalyptic number.

It is an amenable number.

22221833 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221833 is an equidigital number, since it uses as much as digits as its factorization.

22221833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 22221833 is about 4714.0039244786. The cubic root of 22221833 is about 281.1425803440.

The spelling of 22221833 in words is "twenty-two million, two hundred twenty-one thousand, eight hundred thirty-three".