1222831488 has 128 divisors (see below), whose sum is σ = 3620592000. Its totient is φ = 363405312.

The previous prime is 1222831483. The next prime is 1222831523. The reversal of 1222831488 is 8841382221.

It is a tau number, because it is divible by the number of its divisors (128).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222831483) 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 15 ways as a sum of consecutive naturals, for example, 119103 + ... + 128961.

It is an arithmetic number, because the mean of its divisors is an integer number (28285875).

Almost surely, 2^1222831488 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 1222831488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810296000).

1222831488 is an abundant number, since it is smaller than the sum of its proper divisors (2397760512).

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

1222831488 is a wasteful number, since it uses less digits than its factorization.

1222831488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9912 (or 9900 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 1222831488 is about 34969.0075352447. The cubic root of 1222831488 is about 1069.3557387500.

The spelling of 1222831488 in words is "one billion, two hundred twenty-two million, eight hundred thirty-one thousand, four hundred eighty-eight".