23222021 has 8 divisors (see below), whose sum is σ = 24001824. Its totient is φ = 22453200.

The previous prime is 23221997. The next prime is 23222033. The reversal of 23222021 is 12022232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23222021 - 2²² = 19027717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23221987 and 23222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23222081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (3000228).

Almost surely, 2^23222021 is an apocalyptic number.

It is an amenable number.

23222021 is a deficient number, since it is larger than the sum of its proper divisors (779803).

23222021 is a wasteful number, since it uses less digits than its factorization.

23222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 23222021 is about 4818.9232199735. The cubic root of 23222021 is about 285.2988391000.

Adding to 23222021 its reverse (12022232), we get a palindrome (35244253).

The spelling of 23222021 in words is "twenty-three million, two hundred twenty-two thousand, twenty-one".