22235722 has 8 divisors (see below), whose sum is σ = 33395076. Its totient is φ = 11104032.

The previous prime is 22235713. The next prime is 22235729. The reversal of 22235722 is 22753222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21986721 + 249001 = 4689^2 + 499^2 .

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

It is a super-2 number, since 2×22235722² = 988854665722568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22235729) 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 3 ways as a sum of consecutive naturals, for example, 4773 + ... + 8200.

Almost surely, 2^22235722 is an apocalyptic number.

22235722 is a deficient number, since it is larger than the sum of its proper divisors (11159354).

22235722 is a wasteful number, since it uses less digits than its factorization.

22235722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832.

The product of its digits is 3360, while the sum is 25.

The square root of 22235722 is about 4715.4768581767. The cubic root of 22235722 is about 281.2011410106.

Adding to 22235722 its reverse (22753222), we get a palindrome (44988944).

The spelling of 22235722 in words is "twenty-two million, two hundred thirty-five thousand, seven hundred twenty-two".