32120320212 has 18 divisors (see below), whose sum is σ = 81193031738. Its totient is φ = 10706773392.

The previous prime is 32120320201. The next prime is 32120320241. The reversal of 32120320212 is 21202302123.

32120320212 is a `hidden beast` number, since 321 + 2 + 0 + 320 + 21 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31582265796 + 538054416 = 177714^2 + 23196^2 .

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 an unprimeable number.

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, 446115523 + ... + 446115594.

Almost surely, 2^32120320212 is an apocalyptic number.

It is an amenable number.

32120320212 is an abundant number, since it is smaller than the sum of its proper divisors (49072711526).

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

32120320212 is a wasteful number, since it uses less digits than its factorization.

32120320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892231127 (or 892231122 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 32120320212 its reverse (21202302123), we get a palindrome (53322622335).

The spelling of 32120320212 in words is "thirty-two billion, one hundred twenty million, three hundred twenty thousand, two hundred twelve".