11022221222 has 16 divisors (see below), whose sum is σ = 16620024912. Its totient is φ = 5482287360.

The previous prime is 11022221149. The next prime is 11022221257. The reversal of 11022221222 is 22212222011.

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 11022221222.

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, 284318 + ... + 320750.

It is an arithmetic number, because the mean of its divisors is an integer number (1038751557).

Almost surely, 2^11022221222 is an apocalyptic number.

11022221222 is a deficient number, since it is larger than the sum of its proper divisors (5597803690).

11022221222 is a wasteful number, since it uses less digits than its factorization.

11022221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37223.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11022221222 its reverse (22212222011), we get a palindrome (33234443233).

The spelling of 11022221222 in words is "eleven billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".