1224222231 has 8 divisors (see below), whose sum is σ = 1718206720. Its totient is φ = 773192952.

The previous prime is 1224222229. The next prime is 1224222247. The reversal of 1224222231 is 1322224221.

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

It is not a de Polignac number, because 1224222231 - 2¹ = 1224222229 is a prime.

It is a super-2 number, since 2×1224222231² = 2997440141749234722, 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 = 1224222198 and 1224222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224222431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10738735 + ... + 10738848.

It is an arithmetic number, because the mean of its divisors is an integer number (214775840).

Almost surely, 2^1224222231 is an apocalyptic number.

1224222231 is a deficient number, since it is larger than the sum of its proper divisors (493984489).

1224222231 is a wasteful number, since it uses less digits than its factorization.

1224222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21477605.

The product of its digits is 768, while the sum is 21.

The square root of 1224222231 is about 34988.8872500970. The cubic root of 1224222231 is about 1069.7609828017.

Adding to 1224222231 its reverse (1322224221), we get a palindrome (2546446452).

The spelling of 1224222231 in words is "one billion, two hundred twenty-four million, two hundred twenty-two thousand, two hundred thirty-one".