212023312122 has 16 divisors (see below), whose sum is σ = 430998208992. Its totient is φ = 69515839920.

The previous prime is 212023312121. The next prime is 212023312153. The reversal of 212023312122 is 221213320212.

It is not an unprimeable number, because it can be changed into a prime (212023312121) 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, 289648968 + ... + 289649699.

It is an arithmetic number, because the mean of its divisors is an integer number (26937388062).

Almost surely, 2^212023312122 is an apocalyptic number.

212023312122 is an abundant number, since it is smaller than the sum of its proper divisors (218974896870).

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

212023312122 is a wasteful number, since it uses less digits than its factorization.

212023312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579298733.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212023312122 its reverse (221213320212), we get a palindrome (433236632334).

The spelling of 212023312122 in words is "two hundred twelve billion, twenty-three million, three hundred twelve thousand, one hundred twenty-two".