21223203022 has 16 divisors (see below), whose sum is σ = 36545789952. Its totient is φ = 9054869400.

The previous prime is 21223203013. The next prime is 21223203047. The reversal of 21223203022 is 22030232212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3395854 + ... + 3402097.

It is an arithmetic number, because the mean of its divisors is an integer number (2284111872).

Almost surely, 2^21223203022 is an apocalyptic number.

21223203022 is a deficient number, since it is larger than the sum of its proper divisors (15322586930).

21223203022 is a wasteful number, since it uses less digits than its factorization.

21223203022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798183.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21223203022 its reverse (22030232212), we get a palindrome (43253435234).

The spelling of 21223203022 in words is "twenty-one billion, two hundred twenty-three million, two hundred three thousand, twenty-two".