213211132122 has 32 divisors (see below), whose sum is σ = 433795824000. Its totient is φ = 69851015168.

The previous prime is 213211132027. The next prime is 213211132133. The reversal of 213211132122 is 221231112312.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1106247 + ... + 1284602.

It is an arithmetic number, because the mean of its divisors is an integer number (13556119500).

Almost surely, 2^213211132122 is an apocalyptic number.

213211132122 is an abundant number, since it is smaller than the sum of its proper divisors (220584691878).

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

213211132122 is a wasteful number, since it uses less digits than its factorization.

213211132122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391110.

The product of its digits is 288, while the sum is 21.

Adding to 213211132122 its reverse (221231112312), we get a palindrome (434442244434).

The spelling of 213211132122 in words is "two hundred thirteen billion, two hundred eleven million, one hundred thirty-two thousand, one hundred twenty-two".