212122122132 has 12 divisors (see below), whose sum is σ = 494951618336. Its totient is φ = 70707374040.

The previous prime is 212122122061. The next prime is 212122122151. The reversal of 212122122132 is 231221221212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 212122122099 and 212122122108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8838421744 + ... + 8838421767.

Almost surely, 2^212122122132 is an apocalyptic number.

It is an amenable number.

212122122132 is an abundant number, since it is smaller than the sum of its proper divisors (282829496204).

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

212122122132 is a wasteful number, since it uses less digits than its factorization.

212122122132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17676843518 (or 17676843516 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

Adding to 212122122132 its reverse (231221221212), we get a palindrome (443343343344).

The spelling of 212122122132 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred thirty-two".