12003221312302 has 64 divisors (see below), whose sum is σ = 20423318952960. Its totient is φ = 5243456332800.

The previous prime is 12003221312263. The next prime is 12003221312309. The reversal of 12003221312302 is 20321312230021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003221312309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16252699 + ... + 16975177.

It is an arithmetic number, because the mean of its divisors is an integer number (319114358640).

Almost surely, 2^{12003221312302} is an apocalyptic number.

12003221312302 is a deficient number, since it is larger than the sum of its proper divisors (8420097640658).

12003221312302 is a wasteful number, since it uses less digits than its factorization.

12003221312302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722809.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12003221312302 its reverse (20321312230021), we get a palindrome (32324533542323).

The spelling of 12003221312302 in words is "twelve trillion, three billion, two hundred twenty-one million, three hundred twelve thousand, three hundred two".