11212101101212 has 72 divisors (see below), whose sum is σ = 21864987436208. Its totient is φ = 5026028071680.

The previous prime is 11212101101161. The next prime is 11212101101219. The reversal of 11212101101212 is 21210110121211.

It is a super-2 number, since 2×11212101101212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212101101219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564348103 + ... + 564367969.

Almost surely, 2^{11212101101212} is an apocalyptic number.

It is an amenable number.

11212101101212 is a deficient number, since it is larger than the sum of its proper divisors (10652886334996).

11212101101212 is a wasteful number, since it uses less digits than its factorization.

11212101101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35939 (or 35926 counting only the distinct ones).

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

Adding to 11212101101212 its reverse (21210110121211), we get a palindrome (32422211222423).

It can be divided in two parts, 11 and 212101101212, that multiplied together give a palindrome (2333112113332).

The spelling of 11212101101212 in words is "eleven trillion, two hundred twelve billion, one hundred one million, one hundred one thousand, two hundred twelve".