1220033412 has 72 divisors (see below), whose sum is σ = 3411012696. Its totient is φ = 365243904.

The previous prime is 1220033383. The next prime is 1220033417. The reversal of 1220033412 is 2143300221.

1220033412 is a `hidden beast` number, since 1 + 220 + 0 + 33 + 412 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7322436 + 1212710976 = 2706^2 + 34824^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1220033417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17913 + ... + 52544.

Almost surely, 2^1220033412 is an apocalyptic number.

1220033412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220033412 is an abundant number, since it is smaller than the sum of its proper divisors (2190979284).

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

1220033412 is a wasteful number, since it uses less digits than its factorization.

1220033412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70517 (or 70512 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1220033412 is about 34928.9766812599. The cubic root of 1220033412 is about 1068.5394846269.

Adding to 1220033412 its reverse (2143300221), we get a palindrome (3363333633).

The spelling of 1220033412 in words is "one billion, two hundred twenty million, thirty-three thousand, four hundred twelve".