12020020212 has 24 divisors (see below), whose sum is σ = 28054514656. Its totient is φ = 4005559008.

The previous prime is 12020020211. The next prime is 12020020219. The reversal of 12020020212 is 21202002021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93763 + ... + 181194.

Almost surely, 2^12020020212 is an apocalyptic number.

12020020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12020020212 is an abundant number, since it is smaller than the sum of its proper divisors (16034494444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12020020212 is a wasteful number, since it uses less digits than its factorization.

12020020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278607 (or 278605 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12020020212 its reverse (21202002021), we get a palindrome (33222022233).

It can be divided in two parts, 1202002021 and 2, that multiplied together give a palindrome (2404004042).

The spelling of 12020020212 in words is "twelve billion, twenty million, twenty thousand, two hundred twelve".