2011220232 has 128 divisors (see below), whose sum is σ = 6077030400. Its totient is φ = 542476800.

The previous prime is 2011220231. The next prime is 2011220297. The reversal of 2011220232 is 2320221102.

It is a happy number.

It is a super-2 number, since 2×2011220232² = 8090013643212267648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011220231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208819 + ... + 218237.

It is an arithmetic number, because the mean of its divisors is an integer number (47476800).

Almost surely, 2^2011220232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011220232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3038515200).

2011220232 is an abundant number, since it is smaller than the sum of its proper divisors (4065810168).

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

2011220232 is a wasteful number, since it uses less digits than its factorization.

2011220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507 (or 9503 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2011220232 is about 44846.6301075120. The cubic root of 2011220232 is about 1262.2727586562.

Adding to 2011220232 its reverse (2320221102), we get a palindrome (4331441334).

The spelling of 2011220232 in words is "two billion, eleven million, two hundred twenty thousand, two hundred thirty-two".