2131224222 has 64 divisors (see below), whose sum is σ = 4462571520. Its totient is φ = 677980800.

The previous prime is 2131224203. The next prime is 2131224223. The reversal of 2131224222 is 2224221312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131224223) 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, 3005604 + ... + 3006312.

It is an arithmetic number, because the mean of its divisors is an integer number (69727680).

Almost surely, 2^2131224222 is an apocalyptic number.

2131224222 is an abundant number, since it is smaller than the sum of its proper divisors (2331347298).

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

2131224222 is a wasteful number, since it uses less digits than its factorization.

2131224222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its digits is 768, while the sum is 21.

The square root of 2131224222 is about 46165.1840893113. The cubic root of 2131224222 is about 1286.8948052991.

Adding to 2131224222 its reverse (2224221312), we get a palindrome (4355445534).

The spelling of 2131224222 in words is "two billion, one hundred thirty-one million, two hundred twenty-four thousand, two hundred twenty-two".