32012213100 has 144 divisors (see below), whose sum is σ = 106217035008. Its totient is φ = 7291964160.

The previous prime is 32012213083. The next prime is 32012213117. The reversal of 32012213100 is 131221023.

It is an interprime number because it is at equal distance from previous prime (32012213083) and next prime (32012213117).

It is a super-2 number, since 2×32012213100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 32012213100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 589287 + ... + 641313.

Almost surely, 2^32012213100 is an apocalyptic number.

32012213100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32012213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53108517504).

32012213100 is an abundant number, since it is smaller than the sum of its proper divisors (74204821908).

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

32012213100 is a wasteful number, since it uses less digits than its factorization.

32012213100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52344 (or 52337 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 32012213100 its reverse (131221023), we get a palindrome (32143434123).

The spelling of 32012213100 in words is "thirty-two billion, twelve million, two hundred thirteen thousand, one hundred".