12101020211212 has 24 divisors (see below), whose sum is σ = 21445856015360. Its totient is φ = 5973639993360.

The previous prime is 12101020211207. The next prime is 12101020211249. The reversal of 12101020211212 is 21211202010121.

It is a super-2 number, since 2×12101020211212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5898787 + ... + 7680997.

Almost surely, 2^{12101020211212} is an apocalyptic number.

It is an amenable number.

12101020211212 is a deficient number, since it is larger than the sum of its proper divisors (9344835804148).

12101020211212 is a wasteful number, since it uses less digits than its factorization.

12101020211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803781 (or 1803779 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12101020211212 its reverse (21211202010121), we get a palindrome (33312222221333).

The spelling of 12101020211212 in words is "twelve trillion, one hundred one billion, twenty million, two hundred eleven thousand, two hundred twelve".