2011432220 has 48 divisors (see below), whose sum is σ = 4838731968. Its totient is φ = 688020480.

The previous prime is 2011432217. The next prime is 2011432261. The reversal of 2011432220 is 222341102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44030 + ... + 77210.

It is an arithmetic number, because the mean of its divisors is an integer number (100806916).

Almost surely, 2^2011432220 is an apocalyptic number.

2011432220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011432220 is an abundant number, since it is smaller than the sum of its proper divisors (2827299748).

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

2011432220 is a wasteful number, since it uses less digits than its factorization.

2011432220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33630 (or 33628 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2011432220 is about 44848.9935227091. The cubic root of 2011432220 is about 1262.3171060748.

Adding to 2011432220 its reverse (222341102), we get a palindrome (2233773322).

The spelling of 2011432220 in words is "two billion, eleven million, four hundred thirty-two thousand, two hundred twenty".