2191119220 has 24 divisors (see below), whose sum is σ = 4602302208. Its totient is φ = 876266400.

The previous prime is 2191119209. The next prime is 2191119251. The reversal of 2191119220 is 229111912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131985 + ... + 147655.

It is an arithmetic number, because the mean of its divisors is an integer number (191762592).

Almost surely, 2^2191119220 is an apocalyptic number.

2191119220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2191119220 is an abundant number, since it is smaller than the sum of its proper divisors (2411182988).

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

2191119220 is a wasteful number, since it uses less digits than its factorization.

2191119220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22671 (or 22669 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 2191119220 is about 46809.3924335704. The cubic root of 2191119220 is about 1298.8390463694.

The spelling of 2191119220 in words is "two billion, one hundred ninety-one million, one hundred nineteen thousand, two hundred twenty".