212064540132 has 24 divisors (see below), whose sum is σ = 494828593056. Its totient is φ = 70686561088.

The previous prime is 212064540119. The next prime is 212064540157. The reversal of 212064540132 is 231045460212.

It is a self number, because there is not a number n which added to its sum of digits gives 212064540132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419968 + ... + 774920.

It is an arithmetic number, because the mean of its divisors is an integer number (20617858044).

Almost surely, 2^212064540132 is an apocalyptic number.

It is an amenable number.

212064540132 is an abundant number, since it is smaller than the sum of its proper divisors (282764052924).

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

212064540132 is a wasteful number, since it uses less digits than its factorization.

212064540132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404747 (or 404745 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 212064540132 in words is "two hundred twelve billion, sixty-four million, five hundred forty thousand, one hundred thirty-two".