11212122101212 has 6 divisors (see below), whose sum is σ = 19621213677128. Its totient is φ = 5606061050604.

The previous prime is 11212122101197. The next prime is 11212122101221. The reversal of 11212122101212 is 21210122121211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212122101212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401515262648 + ... + 1401515262655.

Almost surely, 2^{11212122101212} is an apocalyptic number.

It is an amenable number.

11212122101212 is a deficient number, since it is larger than the sum of its proper divisors (8409091575916).

11212122101212 is a wasteful number, since it uses less digits than its factorization.

11212122101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803030525307 (or 2803030525305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11212122101212 its reverse (21210122121211), we get a palindrome (32422244222423).

The spelling of 11212122101212 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, one hundred one thousand, two hundred twelve".