2131120222 has 64 divisors (see below), whose sum is σ = 4108382208. Its totient is φ = 804960000.

The previous prime is 2131120163. The next prime is 2131120249. The reversal of 2131120222 is 2220211312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2131120196 and 2131120205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1091347 + ... + 1093297.

It is an arithmetic number, because the mean of its divisors is an integer number (64193472).

Almost surely, 2^2131120222 is an apocalyptic number.

2131120222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131120222 is a deficient number, since it is larger than the sum of its proper divisors (1977261986).

2131120222 is a wasteful number, since it uses less digits than its factorization.

2131120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185.

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

The square root of 2131120222 is about 46164.0576856065. The cubic root of 2131120222 is about 1286.8738722230.

Adding to 2131120222 its reverse (2220211312), we get a palindrome (4351331534).

The spelling of 2131120222 in words is "two billion, one hundred thirty-one million, one hundred twenty thousand, two hundred twenty-two".