32101213212 has 18 divisors (see below), whose sum is σ = 81144733488. Its totient is φ = 10700404392.

The previous prime is 32101213153. The next prime is 32101213219. The reversal of 32101213212 is 21231210123.

32101213212 is a `hidden beast` number, since 321 + 0 + 1 + 21 + 321 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32101213219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445850148 + ... + 445850219.

Almost surely, 2^32101213212 is an apocalyptic number.

It is an amenable number.

32101213212 is an abundant number, since it is smaller than the sum of its proper divisors (49043520276).

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

32101213212 is a wasteful number, since it uses less digits than its factorization.

32101213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891700377 (or 891700372 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 32101213212 its reverse (21231210123), we get a palindrome (53332423335).

The spelling of 32101213212 in words is "thirty-two billion, one hundred one million, two hundred thirteen thousand, two hundred twelve".