1133222100 has 72 divisors (see below), whose sum is σ = 3296122368. Its totient is φ = 300595200.

The previous prime is 1133222099. The next prime is 1133222147. The reversal of 1133222100 is 12223311.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1133222100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47412 + ... + 67188.

Almost surely, 2^1133222100 is an apocalyptic number.

1133222100 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 1133222100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1648061184).

1133222100 is an abundant number, since it is smaller than the sum of its proper divisors (2162900268).

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

1133222100 is a wasteful number, since it uses less digits than its factorization.

1133222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19985 (or 19978 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1133222100 is about 33663.3643594932. The cubic root of 1133222100 is about 1042.5694908505.

Adding to 1133222100 its reverse (12223311), we get a palindrome (1145445411).

The spelling of 1133222100 in words is "one billion, one hundred thirty-three million, two hundred twenty-two thousand, one hundred".