1122302220 has 48 divisors (see below), whose sum is σ = 3384175200. Its totient is φ = 276258816.

The previous prime is 1122302201. The next prime is 1122302249. The reversal of 1122302220 is 222032211.

It is a happy number.

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 1122302220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718645 + ... + 720204.

It is an arithmetic number, because the mean of its divisors is an integer number (70503650).

Almost surely, 2^1122302220 is an apocalyptic number.

1122302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122302220 is an abundant number, since it is smaller than the sum of its proper divisors (2261872980).

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

1122302220 is a wasteful number, since it uses less digits than its factorization.

1122302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438874 (or 1438872 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1122302220 is about 33500.7793939186. The cubic root of 1122302220 is about 1039.2098966938.

Adding to 1122302220 its reverse (222032211), we get a palindrome (1344334431).

The spelling of 1122302220 in words is "one billion, one hundred twenty-two million, three hundred two thousand, two hundred twenty".