22230031 has 4 divisors (see below), whose sum is σ = 22392432. Its totient is φ = 22067632.

The previous prime is 22230023. The next prime is 22230049. The reversal of 22230031 is 13003222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13003222 = 2 ⋅6501611.

It is a cyclic number.

It is not a de Polignac number, because 22230031 - 2³ = 22230023 is a prime.

It is a super-2 number, since 2×22230031² = 988348556521922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22229993 and 22230020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230731) 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, 80995 + ... + 81268.

It is an arithmetic number, because the mean of its divisors is an integer number (5598108).

Almost surely, 2^22230031 is an apocalyptic number.

22230031 is a deficient number, since it is larger than the sum of its proper divisors (162401).

22230031 is a wasteful number, since it uses less digits than its factorization.

22230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162400.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22230031 is about 4714.8733811206. The cubic root of 22230031 is about 281.1771488020.

Adding to 22230031 its reverse (13003222), we get a palindrome (35233253).

The spelling of 22230031 in words is "twenty-two million, two hundred thirty thousand, thirty-one".