1122002200 has 96 divisors (see below), whose sum is σ = 2859816960. Its totient is φ = 405993600.

The previous prime is 1122002191. The next prime is 1122002213. The reversal of 1122002200 is 22002211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489457 + ... + 491743.

It is an arithmetic number, because the mean of its divisors is an integer number (29789760).

Almost surely, 2^1122002200 is an apocalyptic number.

1122002200 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 1122002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429908480).

1122002200 is an abundant number, since it is smaller than the sum of its proper divisors (1737814760).

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

1122002200 is a wasteful number, since it uses less digits than its factorization.

1122002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1122002200 is about 33496.3012883512. The cubic root of 1122002200 is about 1039.1172860065.

Adding to 1122002200 its reverse (22002211), we get a palindrome (1144004411).

It can be divided in two parts, 1122002 and 200, that multiplied together give a square (224400400 = 14980²).

The spelling of 1122002200 in words is "one billion, one hundred twenty-two million, two thousand, two hundred".