32001223100 has 144 divisors (see below), whose sum is σ = 91135000320. Its totient is φ = 9449395200.

The previous prime is 32001223099. The next prime is 32001223123. The reversal of 32001223100 is 132210023.

It is a happy number.

It is a super-2 number, since 2×32001223100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 36932 + ... + 255668.

Almost surely, 2^32001223100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32001223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45567500160).

32001223100 is an abundant number, since it is smaller than the sum of its proper divisors (59133777220).

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

32001223100 is a wasteful number, since it uses less digits than its factorization.

32001223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218788 (or 218781 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 32001223100 its reverse (132210023), we get a palindrome (32133433123).

The spelling of 32001223100 in words is "thirty-two billion, one million, two hundred twenty-three thousand, one hundred".