2212311520 has 24 divisors (see below), whose sum is σ = 5226586344. Its totient is φ = 884924544.

The previous prime is 2212311509. The next prime is 2212311527. The reversal of 2212311520 is 251132122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212311527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6913314 + ... + 6913633.

It is an arithmetic number, because the mean of its divisors is an integer number (217774431).

Almost surely, 2^2212311520 is an apocalyptic number.

2212311520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212311520 is an abundant number, since it is smaller than the sum of its proper divisors (3014274824).

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

2212311520 is a wasteful number, since it uses less digits than its factorization.

2212311520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13826962 (or 13826954 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2212311520 is about 47035.2157431004. The cubic root of 2212311520 is about 1303.0130349048.

Adding to 2212311520 its reverse (251132122), we get a palindrome (2463443642).

The spelling of 2212311520 in words is "two billion, two hundred twelve million, three hundred eleven thousand, five hundred twenty".