11222122012 has 6 divisors (see below), whose sum is σ = 19638713528. Its totient is φ = 5611061004.

The previous prime is 11222122007. The next prime is 11222122099. The reversal of 11222122012 is 21022122211.

It is a happy number.

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, 1402765248 + ... + 1402765255.

Almost surely, 2^11222122012 is an apocalyptic number.

It is an amenable number.

11222122012 is a deficient number, since it is larger than the sum of its proper divisors (8416591516).

11222122012 is a wasteful number, since it uses less digits than its factorization.

11222122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805530507 (or 2805530505 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11222122012 its reverse (21022122211), we get a palindrome (32244244223).

The spelling of 11222122012 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, twelve".