1150022020 has 96 divisors (see below), whose sum is σ = 2820819456. Its totient is φ = 385689600.

The previous prime is 1150021937. The next prime is 1150022023. The reversal of 1150022020 is 202200511.

It is not an unprimeable number, because it can be changed into a prime (1150022023) 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 31 ways as a sum of consecutive naturals, for example, 2655724 + ... + 2656156.

It is an arithmetic number, because the mean of its divisors is an integer number (29383536).

Almost surely, 2^1150022020 is an apocalyptic number.

1150022020 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 1150022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410409728).

1150022020 is an abundant number, since it is smaller than the sum of its proper divisors (1670797436).

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

1150022020 is a wasteful number, since it uses less digits than its factorization.

1150022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1150022020 is about 33911.9745812596. The cubic root of 1150022020 is about 1047.6962401214.

Adding to 1150022020 its reverse (202200511), we get a palindrome (1352222531).

The spelling of 1150022020 in words is "one billion, one hundred fifty million, twenty-two thousand, twenty".