12021203132 has 12 divisors (see below), whose sum is σ = 22274582400. Its totient is φ = 5657036736.

The previous prime is 12021203123. The next prime is 12021203141. The reversal of 12021203132 is 23130212021.

It is an interprime number because it is at equal distance from previous prime (12021203123) and next prime (12021203141).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12021203132.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 88391132 + ... + 88391267.

It is an arithmetic number, because the mean of its divisors is an integer number (1856215200).

Almost surely, 2^12021203132 is an apocalyptic number.

It is an amenable number.

12021203132 is a deficient number, since it is larger than the sum of its proper divisors (10253379268).

12021203132 is a wasteful number, since it uses less digits than its factorization.

12021203132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176782420 (or 176782418 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12021203132 its reverse (23130212021), we get a palindrome (35151415153).

The spelling of 12021203132 in words is "twelve billion, twenty-one million, two hundred three thousand, one hundred thirty-two".