12021420302 has 8 divisors (see below), whose sum is σ = 18451482456. Its totient is φ = 5870926152.

The previous prime is 12021420269. The next prime is 12021420317. The reversal of 12021420302 is 20302412021.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 69891893 + ... + 69892064.

It is an arithmetic number, because the mean of its divisors is an integer number (2306435307).

Almost surely, 2^12021420302 is an apocalyptic number.

12021420302 is a deficient number, since it is larger than the sum of its proper divisors (6430062154).

12021420302 is a wasteful number, since it uses less digits than its factorization.

12021420302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139784002.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12021420302 its reverse (20302412021), we get a palindrome (32323832323).

The spelling of 12021420302 in words is "twelve billion, twenty-one million, four hundred twenty thousand, three hundred two".