11112122201212 has 24 divisors (see below), whose sum is σ = 20117756232000. Its totient is φ = 5364210578496.

The previous prime is 11112122201209. The next prime is 11112122201231. The reversal of 11112122201212 is 21210222121111.

It is a happy number.

11112122201212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11112122201212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52813 + ... + 4714555.

It is an arithmetic number, because the mean of its divisors is an integer number (838239843000).

Almost surely, 2^{11112122201212} is an apocalyptic number.

It is an amenable number.

11112122201212 is a deficient number, since it is larger than the sum of its proper divisors (9005634030788).

11112122201212 is a wasteful number, since it uses less digits than its factorization.

11112122201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682325 (or 4682323 counting only the distinct ones).

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

Adding to 11112122201212 its reverse (21210222121111), we get a palindrome (32322344322323).

The spelling of 11112122201212 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-two million, two hundred one thousand, two hundred twelve".