2111220232 has 64 divisors (see below), whose sum is σ = 4591416960. Its totient is φ = 900556800.

The previous prime is 2111220227. The next prime is 2111220239. The reversal of 2111220232 is 2320221112.

It is a happy number.

It is a super-3 number, since 3×2111220232³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2111220239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97432 + ... + 117112.

It is an arithmetic number, because the mean of its divisors is an integer number (71740890).

Almost surely, 2^2111220232 is an apocalyptic number.

2111220232 is a gapful number since it is divisible by the number (22) 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 2111220232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2295708480).

2111220232 is an abundant number, since it is smaller than the sum of its proper divisors (2480196728).

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

2111220232 is a wasteful number, since it uses less digits than its factorization.

2111220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19774 (or 19770 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2111220232 is about 45948.0166274889. The cubic root of 2111220232 is about 1282.8558127745.

Adding to 2111220232 its reverse (2320221112), we get a palindrome (4431441344).

The spelling of 2111220232 in words is "two billion, one hundred eleven million, two hundred twenty thousand, two hundred thirty-two".