2212520324 has 18 divisors (see below), whose sum is σ = 4504059630. Its totient is φ = 948222912.

The previous prime is 2212520291. The next prime is 2212520327. The reversal of 2212520324 is 4230252122.

It can be written as a sum of positive squares in only one way, i.e., 1654048900 + 558471424 = 40670^2 + 23632^2 .

It is a super-2 number, since 2×2212520324² = 9790492368226129952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2212520324.

It is not an unprimeable number, because it can be changed into a prime (2212520327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5643989 + ... + 5644380.

It is an arithmetic number, because the mean of its divisors is an integer number (250225535).

Almost surely, 2^2212520324 is an apocalyptic number.

It is an amenable number.

2212520324 is an abundant number, since it is smaller than the sum of its proper divisors (2291539306).

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

2212520324 is a wasteful number, since it uses less digits than its factorization.

2212520324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11288387 (or 11288378 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2212520324 is about 47037.4353467533. The cubic root of 2212520324 is about 1303.0540275908.

Adding to 2212520324 its reverse (4230252122), we get a palindrome (6442772446).

The spelling of 2212520324 in words is "two billion, two hundred twelve million, five hundred twenty thousand, three hundred twenty-four".