1224231000 has 64 divisors (see below), whose sum is σ = 3819610080. Its totient is φ = 326460800.

The previous prime is 1224230989. The next prime is 1224231007. The reversal of 1224231000 is 1324221.

It is a super-2 number, since 2×1224231000² = 2997483082722000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224231007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201039 + ... + 207038.

Almost surely, 2^1224231000 is an apocalyptic number.

1224231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224231000 is an abundant number, since it is smaller than the sum of its proper divisors (2595379080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1224231000 is a wasteful number, since it uses less digits than its factorization.

1224231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408101 (or 408087 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1224231000 is about 34989.0125610884. The cubic root of 1224231000 is about 1069.7635369980.

Adding to 1224231000 its reverse (1324221), we get a palindrome (1225555221).

The spelling of 1224231000 in words is "one billion, two hundred twenty-four million, two hundred thirty-one thousand".