212133220012 has 18 divisors (see below), whose sum is σ = 431842626852. Its totient is φ = 90914237064.

The previous prime is 212133220003. The next prime is 212133220037. The reversal of 212133220012 is 210022331212.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541155978 + ... + 541156369.

Almost surely, 2^212133220012 is an apocalyptic number.

It is an amenable number.

212133220012 is an abundant number, since it is smaller than the sum of its proper divisors (219709406840).

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

212133220012 is a wasteful number, since it uses less digits than its factorization.

212133220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082312365 (or 1082312356 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212133220012 its reverse (210022331212), we get a palindrome (422155551224).

The spelling of 212133220012 in words is "two hundred twelve billion, one hundred thirty-three million, two hundred twenty thousand, twelve".