12020021002 has 16 divisors (see below), whose sum is σ = 19672595712. Its totient is φ = 5462681920.

The previous prime is 12020020981. The next prime is 12020021011. The reversal of 12020021002 is 20012002021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020021002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87858 + ... + 178210.

It is an arithmetic number, because the mean of its divisors is an integer number (1229537232).

Almost surely, 2^12020021002 is an apocalyptic number.

12020021002 is a deficient number, since it is larger than the sum of its proper divisors (7652574710).

12020021002 is a wasteful number, since it uses less digits than its factorization.

12020021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96413.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12020021002 its reverse (20012002021), we get a palindrome (32032023023).

The spelling of 12020021002 in words is "twelve billion, twenty million, twenty-one thousand, two".