32151231222 has 32 divisors (see below), whose sum is σ = 70842691584. Its totient is φ = 9646332000.

The previous prime is 32151231169. The next prime is 32151231223. The reversal of 32151231222 is 22213215123.

It is a super-2 number, since 2×32151231222² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32151231192 and 32151231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32151231223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2404918 + ... + 2418249.

It is an arithmetic number, because the mean of its divisors is an integer number (2213834112).

Almost surely, 2^32151231222 is an apocalyptic number.

32151231222 is an abundant number, since it is smaller than the sum of its proper divisors (38691460362).

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

32151231222 is a wasteful number, since it uses less digits than its factorization.

32151231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823284.

The product of its digits is 1440, while the sum is 24.

Adding to 32151231222 its reverse (22213215123), we get a palindrome (54364446345).

The spelling of 32151231222 in words is "thirty-two billion, one hundred fifty-one million, two hundred thirty-one thousand, two hundred twenty-two".