12001111020212 has 12 divisors (see below), whose sum is σ = 21001999911396. Its totient is φ = 6000539616960.

The previous prime is 12001111020191. The next prime is 12001111020221. The reversal of 12001111020212 is 21202011110021.

It can be written as a sum of positive squares in 2 ways, for example, as 5630151366436 + 6370959653776 = 2372794^2 + 2524076^2 .

It is a super-2 number, since 2×12001111020212² (a number of 27 digits) contains 22 as substring.

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, 2184839 + ... + 5364302.

It is an arithmetic number, because the mean of its divisors is an integer number (1750166659283).

Almost surely, 2^{12001111020212} is an apocalyptic number.

It is an amenable number.

12001111020212 is a deficient number, since it is larger than the sum of its proper divisors (9000888891184).

12001111020212 is a wasteful number, since it uses less digits than its factorization.

12001111020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946578 (or 7946576 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12001111020212 its reverse (21202011110021), we get a palindrome (33203122130233).

The spelling of 12001111020212 in words is "twelve trillion, one billion, one hundred eleven million, twenty thousand, two hundred twelve".