12011211000212 has 6 divisors (see below), whose sum is σ = 21019619250378. Its totient is φ = 6005605500104.

The previous prime is 12011211000203. The next prime is 12011211000223. The reversal of 12011211000212 is 21200011211021.

It can be written as a sum of positive squares in only one way, i.e., 10825455522436 + 1185755477776 = 3290206^2 + 1088924^2 .

It is a super-2 number, since 2×12011211000212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1501401375023 + ... + 1501401375030.

It is an arithmetic number, because the mean of its divisors is an integer number (3503269875063).

Almost surely, 2^{12011211000212} is an apocalyptic number.

It is an amenable number.

12011211000212 is a deficient number, since it is larger than the sum of its proper divisors (9008408250166).

12011211000212 is a wasteful number, since it uses less digits than its factorization.

12011211000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002802750057 (or 3002802750055 counting only the distinct ones).

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

Adding to 12011211000212 its reverse (21200011211021), we get a palindrome (33211222211233).

The spelling of 12011211000212 in words is "twelve trillion, eleven billion, two hundred eleven million, two hundred twelve", and thus it is an aban number.