1117292220 has 216 divisors, whose sum is σ = 3815059248. Its totient is φ = 264337920.

The previous prime is 1117292213. The next prime is 1117292221. The reversal of 1117292220 is 222927111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117292221) 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 71 ways as a sum of consecutive naturals, for example, 935944 + ... + 937136.

Almost surely, 2^1117292220 is an apocalyptic number.

1117292220 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 1117292220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1907529624).

1117292220 is an abundant number, since it is smaller than the sum of its proper divisors (2697767028).

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

1117292220 is a wasteful number, since it uses less digits than its factorization.

1117292220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1117292220 is about 33425.9213784751. The cubic root of 1117292220 is about 1037.6612324060.

The spelling of 1117292220 in words is "one billion, one hundred seventeen million, two hundred ninety-two thousand, two hundred twenty".