12020210331 has 16 divisors (see below), whose sum is σ = 17025254400. Its totient is φ = 7522059168.

The previous prime is 12020210317. The next prime is 12020210353. The reversal of 12020210331 is 13301202021.

It is not a de Polignac number, because 12020210331 - 2⁵ = 12020210299 is a prime.

It is a super-2 number, since 2×12020210331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12020210331.

It is not an unprimeable number, because it can be changed into a prime (12020210381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961131 + ... + 973556.

It is an arithmetic number, because the mean of its divisors is an integer number (1064078400).

Almost surely, 2^12020210331 is an apocalyptic number.

12020210331 is a deficient number, since it is larger than the sum of its proper divisors (5005044069).

12020210331 is a wasteful number, since it uses less digits than its factorization.

12020210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934818.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12020210331 its reverse (13301202021), we get a palindrome (25321412352).

The spelling of 12020210331 in words is "twelve billion, twenty million, two hundred ten thousand, three hundred thirty-one".