12002001332 has 6 divisors (see below), whose sum is σ = 21003502338. Its totient is φ = 6001000664.

The previous prime is 12002001331. The next prime is 12002001371. The reversal of 12002001332 is 23310020021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9526540816 + 2475460516 = 97604^2 + 49754^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002001331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500250163 + ... + 1500250170.

It is an arithmetic number, because the mean of its divisors is an integer number (3500583723).

Almost surely, 2^12002001332 is an apocalyptic number.

It is an amenable number.

12002001332 is a deficient number, since it is larger than the sum of its proper divisors (9001501006).

12002001332 is a wasteful number, since it uses less digits than its factorization.

12002001332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000500337 (or 3000500335 counting only the distinct ones).

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

Adding to 12002001332 its reverse (23310020021), we get a palindrome (35312021353).

The spelling of 12002001332 in words is "twelve billion, two million, one thousand, three hundred thirty-two".