2131211224 has 32 divisors (see below), whose sum is σ = 4015725120. Its totient is φ = 1060367616.

The previous prime is 2131211179. The next prime is 2131211233. The reversal of 2131211224 is 4221121312.

It is a super-2 number, since 2×2131211224² = 9084122562607156352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062612 + ... + 2063644.

It is an arithmetic number, because the mean of its divisors is an integer number (125491410).

Almost surely, 2^2131211224 is an apocalyptic number.

It is an amenable number.

2131211224 is a deficient number, since it is larger than the sum of its proper divisors (1884513896).

2131211224 is a wasteful number, since it uses less digits than its factorization.

2131211224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2055 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2131211224 is about 46165.0433120126. The cubic root of 2131211224 is about 1286.8921891044.

Adding to 2131211224 its reverse (4221121312), we get a palindrome (6352332536).

The spelling of 2131211224 in words is "two billion, one hundred thirty-one million, two hundred eleven thousand, two hundred twenty-four".