12032201000 has 64 divisors (see below), whose sum is σ = 28313064000. Its totient is φ = 4785921600.

The previous prime is 12032200937. The next prime is 12032201009. The reversal of 12032201000 is 10223021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12032201009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145391 + ... + 212609.

It is an arithmetic number, because the mean of its divisors is an integer number (442391625).

Almost surely, 2^12032201000 is an apocalyptic number.

12032201000 is a gapful number since it is divisible by the number (10) 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 12032201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14156532000).

12032201000 is an abundant number, since it is smaller than the sum of its proper divisors (16280863000).

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

12032201000 is a wasteful number, since it uses less digits than its factorization.

12032201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67419 (or 67405 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12032201000 its reverse (10223021), we get a palindrome (12042424021).

The spelling of 12032201000 in words is "twelve billion, thirty-two million, two hundred one thousand".