2231122120 has 32 divisors (see below), whose sum is σ = 5284238400. Its totient is φ = 845477568.

The previous prime is 2231122097. The next prime is 2231122129. The reversal of 2231122120 is 212211322.

It is a happy number.

It is a super-3 number, since 3×2231122120³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231122094 and 2231122103.

It is not an unprimeable number, because it can be changed into a prime (2231122129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467084 + ... + 1468603.

It is an arithmetic number, because the mean of its divisors is an integer number (165132450).

Almost surely, 2^2231122120 is an apocalyptic number.

2231122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231122120 is an abundant number, since it is smaller than the sum of its proper divisors (3053116280).

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

2231122120 is a wasteful number, since it uses less digits than its factorization.

2231122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935717 (or 2935713 counting only the distinct ones).

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

The square root of 2231122120 is about 47234.7554243695. The cubic root of 2231122120 is about 1306.6956559698.

Adding to 2231122120 its reverse (212211322), we get a palindrome (2443333442).

The spelling of 2231122120 in words is "two billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred twenty".