12002020144 has 10 divisors (see below), whose sum is σ = 23253914060. Its totient is φ = 6001010064.

The previous prime is 12002020139. The next prime is 12002020153. The reversal of 12002020144 is 44102020021.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 750126259 = 12002020144 / (1 + 2 + 0 + 0 + 2 + 0 + 2 + 0 + 1 + 4 + 4).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375063114 + ... + 375063145.

It is an arithmetic number, because the mean of its divisors is an integer number (2325391406).

Almost surely, 2^12002020144 is an apocalyptic number.

It is an amenable number.

12002020144 is a deficient number, since it is larger than the sum of its proper divisors (11251893916).

12002020144 is an equidigital number, since it uses as much as digits as its factorization.

12002020144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750126267 (or 750126261 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12002020144 its reverse (44102020021), we get a palindrome (56104040165).

The spelling of 12002020144 in words is "twelve billion, two million, twenty thousand, one hundred forty-four".