1122522240 has 320 divisors, whose sum is σ = 4344759360. Its totient is φ = 241483776.

The previous prime is 1122522209. The next prime is 1122522251. The reversal of 1122522240 is 422252211.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 66030712 + ... + 66030728.

It is an arithmetic number, because the mean of its divisors is an integer number (13577373).

Almost surely, 2^1122522240 is an apocalyptic number.

1122522240 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 1122522240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2172379680).

1122522240 is an abundant number, since it is smaller than the sum of its proper divisors (3222237120).

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

1122522240 is an frugal number, since it uses more digits than its factorization.

1122522240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1122522240 is about 33504.0630371900. The cubic root of 1122522240 is about 1039.2778023545.

Adding to 1122522240 its reverse (422252211), we get a palindrome (1544774451).

The spelling of 1122522240 in words is "one billion, one hundred twenty-two million, five hundred twenty-two thousand, two hundred forty".