2212127530 has 16 divisors (see below), whose sum is σ = 4078948104. Its totient is φ = 863269120.

The previous prime is 2212127527. The next prime is 2212127531. The reversal of 2212127530 is 357212122.

It can be written as a sum of positive squares in 4 ways, for example, as 767899521 + 1444228009 = 27711^2 + 38003^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212127495 and 2212127504.

It is not an unprimeable number, because it can be changed into a prime (2212127531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2697307 + ... + 2698126.

Almost surely, 2^2212127530 is an apocalyptic number.

2212127530 is a deficient number, since it is larger than the sum of its proper divisors (1866820574).

2212127530 is a wasteful number, since it uses less digits than its factorization.

2212127530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395481.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2212127530 is about 47033.2598274880. The cubic root of 2212127530 is about 1302.9769115992.

Adding to 2212127530 its reverse (357212122), we get a palindrome (2569339652).

The spelling of 2212127530 in words is "two billion, two hundred twelve million, one hundred twenty-seven thousand, five hundred thirty".