212123242321212 has 48 divisors (see below), whose sum is σ = 508577779648512. Its totient is φ = 68763379037760.

The previous prime is 212123242321117. The next prime is 212123242321223.

It is a happy number.

212123242321212 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×212123242321212⁴ (a number of 58 digits) contains 4444 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 212123242321212.

It is a congruent number.

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, 114875364 + ... + 116707307.

It is an arithmetic number, because the mean of its divisors is an integer number (10595370409344).

Almost surely, 2^{212123242321212} is an apocalyptic number.

It is an amenable number.

212123242321212 is an abundant number, since it is smaller than the sum of its proper divisors (296454537327300).

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

212123242321212 is a wasteful number, since it uses less digits than its factorization.

212123242321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231584778 (or 231584776 counting only the distinct ones).

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

The spelling of 212123242321212 in words is "two hundred twelve trillion, one hundred twenty-three billion, two hundred forty-two million, three hundred twenty-one thousand, two hundred twelve".