212124222130 has 16 divisors (see below), whose sum is σ = 381854329560. Its totient is φ = 84842860032.

The previous prime is 212124222113. The next prime is 212124222131. The reversal of 212124222130 is 31222421212.

It can be written as a sum of positive squares in 4 ways, for example, as 172147818649 + 39976403481 = 414907^2 + 199941^2 .

It is a super-2 number, since 2×212124222130² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212124222131) 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, 722175 + ... + 972514.

Almost surely, 2^212124222130 is an apocalyptic number.

212124222130 is a deficient number, since it is larger than the sum of its proper divisors (169730107430).

212124222130 is a wasteful number, since it uses less digits than its factorization.

212124222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707213.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212124222130 its reverse (31222421212), we get a palindrome (243346643342).

The spelling of 212124222130 in words is "two hundred twelve billion, one hundred twenty-four million, two hundred twenty-two thousand, one hundred thirty".