22069321 has 4 divisors (see below), whose sum is σ = 22106644. Its totient is φ = 22032000.

The previous prime is 22069297. The next prime is 22069381. The reversal of 22069321 is 12396022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6702921 + 15366400 = 2589^2 + 3920^2 .

It is a cyclic number.

It is not a de Polignac number, because 22069321 - 2¹¹ = 22067273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22069381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17760 + ... + 18961.

It is an arithmetic number, because the mean of its divisors is an integer number (5526661).

Almost surely, 2^22069321 is an apocalyptic number.

It is an amenable number.

22069321 is a deficient number, since it is larger than the sum of its proper divisors (37323).

22069321 is an equidigital number, since it uses as much as digits as its factorization.

22069321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37322.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22069321 is about 4697.7995912980. The cubic root of 22069321 is about 280.4979277789.

The spelling of 22069321 in words is "twenty-two million, sixty-nine thousand, three hundred twenty-one".