11222020012 has 24 divisors (see below), whose sum is σ = 22779029504. Its totient is φ = 4737653712.

The previous prime is 11222019997. The next prime is 11222020013. The reversal of 11222020012 is 21002022211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11222019974 and 11222020001.

It is not an unprimeable number, because it can be changed into a prime (11222020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989068 + ... + 2992819.

Almost surely, 2^11222020012 is an apocalyptic number.

It is an amenable number.

11222020012 is an abundant number, since it is smaller than the sum of its proper divisors (11557009492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222020012 is a wasteful number, since it uses less digits than its factorization.

11222020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981965 (or 5981963 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11222020012 its reverse (21002022211), we get a palindrome (32224042223).

The spelling of 11222020012 in words is "eleven billion, two hundred twenty-two million, twenty thousand, twelve".