1122000236 has 72 divisors (see below), whose sum is σ = 2482099200. Its totient is φ = 440808480.

The previous prime is 1122000233. The next prime is 1122000241. The reversal of 1122000236 is 6320002211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122000233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110585 + ... + 120303.

It is an arithmetic number, because the mean of its divisors is an integer number (34473600).

Almost surely, 2^1122000236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122000236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241049600).

1122000236 is an abundant number, since it is smaller than the sum of its proper divisors (1360098964).

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

1122000236 is a wasteful number, since it uses less digits than its factorization.

1122000236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9787 (or 9778 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1122000236 is about 33496.2719716687. The cubic root of 1122000236 is about 1039.1166797012.

Adding to 1122000236 its reverse (6320002211), we get a palindrome (7442002447).

The spelling of 1122000236 in words is "one billion, one hundred twenty-two million, two hundred thirty-six", and thus it is an aban number.