212404040404212 has 48 divisors (see below), whose sum is σ = 517159356481152. Its totient is φ = 67722805687680.

The previous prime is 212404040404211. The next prime is 212404040404217.

212404040404212 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 212404040404212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212404040404211) 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, 97096162 + ... + 99259622.

It is an arithmetic number, because the mean of its divisors is an integer number (10774153260024).

Almost surely, 2^{212404040404212} is an apocalyptic number.

It is an amenable number.

212404040404212 is an abundant number, since it is smaller than the sum of its proper divisors (304755316076940).

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

212404040404212 is a wasteful number, since it uses less digits than its factorization.

212404040404212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519208 (or 2519206 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The spelling of 212404040404212 in words is "two hundred twelve trillion, four hundred four billion, forty million, four hundred four thousand, two hundred twelve".