212122210130 has 32 divisors (see below), whose sum is σ = 395376649200. Its totient is φ = 81842075392.

The previous prime is 212122210117. The next prime is 212122210133. The reversal of 212122210130 is 31012221212.

It can be written as a sum of positive squares in 8 ways, for example, as 27972228001 + 184149982129 = 167249^2 + 429127^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212122210099 and 212122210108.

It is not an unprimeable number, because it can be changed into a prime (212122210133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67265 + ... + 654804.

Almost surely, 2^212122210130 is an apocalyptic number.

212122210130 is a deficient number, since it is larger than the sum of its proper divisors (183254439070).

212122210130 is a wasteful number, since it uses less digits than its factorization.

212122210130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723118.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212122210130 its reverse (31012221212), we get a palindrome (243134431342).

The spelling of 212122210130 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, one hundred thirty".