212321242123212 has 48 divisors (see below), whose sum is σ = 508808709080672. Its totient is φ = 68860557734400.

The previous prime is 212321242123187. The next prime is 212321242123219.

It is a happy number.

212321242123212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×212321242123212² (a number of 29 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212321242123212.

It is not an unprimeable number, because it can be changed into a prime (212321242123219) 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, 84170712 + ... + 86656512.

Almost surely, 2^{212321242123212} is an apocalyptic number.

It is an amenable number.

212321242123212 is an abundant number, since it is smaller than the sum of its proper divisors (296487466957460).

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

212321242123212 is a wasteful number, since it uses less digits than its factorization.

212321242123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678218 (or 2678216 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The spelling of 212321242123212 in words is "two hundred twelve trillion, three hundred twenty-one billion, two hundred forty-two million, one hundred twenty-three thousand, two hundred twelve".