2111212224 has 84 divisors (see below), whose sum is σ = 6601556520. Its totient is φ = 639759360.

The previous prime is 2111212219. The next prime is 2111212241. The reversal of 2111212224 is 4222121112.

2111212224 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2111212197 and 2111212206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160269 + ... + 172940.

Almost surely, 2^2111212224 is an apocalyptic number.

2111212224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2111212224 is an abundant number, since it is smaller than the sum of its proper divisors (4490344296).

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

2111212224 is a wasteful number, since it uses less digits than its factorization.

2111212224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333238 (or 333225 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 2111212224 is about 45947.9294854512. The cubic root of 2111212224 is about 1282.8541907864.

Adding to 2111212224 its reverse (4222121112), we get a palindrome (6333333336).

The spelling of 2111212224 in words is "two billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-four".