222801231 has 8 divisors (see below), whose sum is σ = 298006704. Its totient is φ = 148064960.

The previous prime is 222801191. The next prime is 222801289. The reversal of 222801231 is 132108222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222801231 is a prime.

It is a super-2 number, since 2×222801231² = 99280777070230722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222801198 and 222801207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222801431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116190 + ... + 118091.

It is an arithmetic number, because the mean of its divisors is an integer number (37250838).

Almost surely, 2^222801231 is an apocalyptic number.

222801231 is a deficient number, since it is larger than the sum of its proper divisors (75205473).

222801231 is a wasteful number, since it uses less digits than its factorization.

222801231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234601.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 222801231 is about 14926.5277610032. The cubic root of 222801231 is about 606.2324724305.

Adding to 222801231 its reverse (132108222), we get a palindrome (354909453).

The spelling of 222801231 in words is "two hundred twenty-two million, eight hundred one thousand, two hundred thirty-one".