1224421863 has 32 divisors (see below), whose sum is σ = 1914372096. Its totient is φ = 681589728.

The previous prime is 1224421837. The next prime is 1224421897. The reversal of 1224421863 is 3681244221.

It is not a de Polignac number, because 1224421863 - 2⁵ = 1224421831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224421823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217320 + ... + 222882.

It is an arithmetic number, because the mean of its divisors is an integer number (59824128).

Almost surely, 2^1224421863 is an apocalyptic number.

1224421863 is a deficient number, since it is larger than the sum of its proper divisors (689950233).

1224421863 is a wasteful number, since it uses less digits than its factorization.

1224421863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843.

The product of its digits is 18432, while the sum is 33.

The square root of 1224421863 is about 34991.7399253024. The cubic root of 1224421863 is about 1069.8191277234.

The spelling of 1224421863 in words is "one billion, two hundred twenty-four million, four hundred twenty-one thousand, eight hundred sixty-three".