1222111232 has 52 divisors (see below), whose sum is σ = 2587831776. Its totient is φ = 575078400.

The previous prime is 1222111207. The next prime is 1222111273. The reversal of 1222111232 is 2321112221.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1222111232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60857 + ... + 78407.

Almost surely, 2^1222111232 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 1222111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293915888).

1222111232 is an abundant number, since it is smaller than the sum of its proper divisors (1365720544).

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

1222111232 is an equidigital number, since it uses as much as digits as its factorization.

1222111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592 (or 17570 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 1222111232 is about 34958.7075275960. The cubic root of 1222111232 is about 1069.1457449327.

Adding to 1222111232 its reverse (2321112221), we get a palindrome (3543223453).

The spelling of 1222111232 in words is "one billion, two hundred twenty-two million, one hundred eleven thousand, two hundred thirty-two".