212133430122 has 128 divisors (see below), whose sum is σ = 474610752000. Its totient is φ = 62866907136.

The previous prime is 212133430073. The next prime is 212133430129. The reversal of 212133430122 is 221034331212.

It is a junction number, because it is equal to n+sod(n) for n = 212133430092 and 212133430101.

It is not an unprimeable number, because it can be changed into a prime (212133430129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89242998 + ... + 89245374.

It is an arithmetic number, because the mean of its divisors is an integer number (3707896500).

Almost surely, 2^212133430122 is an apocalyptic number.

212133430122 is an abundant number, since it is smaller than the sum of its proper divisors (262477321878).

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

212133430122 is a wasteful number, since it uses less digits than its factorization.

212133430122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212133430122 its reverse (221034331212), we get a palindrome (433167761334).

The spelling of 212133430122 in words is "two hundred twelve billion, one hundred thirty-three million, four hundred thirty thousand, one hundred twenty-two".