1113222000 has 320 divisors, whose sum is σ = 3977745408. Its totient is φ = 265600000.

The previous prime is 1113221987. The next prime is 1113222013. The reversal of 1113222000 is 2223111.

It is an interprime number because it is at equal distance from previous prime (1113221987) and next prime (1113222013).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6665917 + ... + 6666083.

Almost surely, 2^1113222000 is an apocalyptic number.

1113222000 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 1113222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988872704).

1113222000 is an abundant number, since it is smaller than the sum of its proper divisors (2864523408).

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

1113222000 is a wasteful number, since it uses less digits than its factorization.

1113222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 289 counting only the distinct ones).

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

The square root of 1113222000 is about 33364.9816424346. The cubic root of 1113222000 is about 1036.3996559853.

Adding to 1113222000 its reverse (2223111), we get a palindrome (1115445111).

The spelling of 1113222000 in words is "one billion, one hundred thirteen million, two hundred twenty-two thousand".