212420133312 has 28 divisors (see below), whose sum is σ = 562028269896. Its totient is φ = 70806711040.

The previous prime is 212420133311. The next prime is 212420133329. The reversal of 212420133312 is 213331024212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212420133311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553177239 + ... + 553177622.

Almost surely, 2^212420133312 is an apocalyptic number.

It is an amenable number.

212420133312 is an abundant number, since it is smaller than the sum of its proper divisors (349608136584).

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

212420133312 is a wasteful number, since it uses less digits than its factorization.

212420133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106354876 (or 1106354866 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212420133312 its reverse (213331024212), we get a palindrome (425751157524).

The spelling of 212420133312 in words is "two hundred twelve billion, four hundred twenty million, one hundred thirty-three thousand, three hundred twelve".