1122231000 has 256 divisors, whose sum is σ = 3946475520. Its totient is φ = 263040000.

The previous prime is 1122230999. The next prime is 1122231007. The reversal of 1122231000 is 1322211.

It is a super-2 number, since 2×1122231000² = 2518804834722000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122231007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1022452 + ... + 1023548.

It is an arithmetic number, because the mean of its divisors is an integer number (15415920).

Almost surely, 2^1122231000 is an apocalyptic number.

1122231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1973237760).

1122231000 is an abundant number, since it is smaller than the sum of its proper divisors (2824244520).

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

1122231000 is a wasteful number, since it uses less digits than its factorization.

1122231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1149 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1122231000 is about 33499.7164167102. The cubic root of 1122231000 is about 1039.1879138763.

Adding to 1122231000 its reverse (1322211), we get a palindrome (1123553211).

The spelling of 1122231000 in words is "one billion, one hundred twenty-two million, two hundred thirty-one thousand".