12020100212 has 12 divisors (see below), whose sum is σ = 21039730656. Its totient is φ = 6008748600.

The previous prime is 12020100181. The next prime is 12020100221. The reversal of 12020100212 is 21200102021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12020100193 and 12020100202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304448 + ... + 341655.

It is an arithmetic number, because the mean of its divisors is an integer number (1753310888).

Almost surely, 2^12020100212 is an apocalyptic number.

It is an amenable number.

12020100212 is a deficient number, since it is larger than the sum of its proper divisors (9019630444).

12020100212 is a wasteful number, since it uses less digits than its factorization.

12020100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650758 (or 650756 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12020100212 its reverse (21200102021), we get a palindrome (33220202233).

The spelling of 12020100212 in words is "twelve billion, twenty million, one hundred thousand, two hundred twelve".