11111122210222 has 16 divisors (see below), whose sum is σ = 17057125995120. Its totient is φ = 5426613062208.

The previous prime is 11111122210189. The next prime is 11111122210231. The reversal of 11111122210222 is 22201222111111.

It is a happy number.

It is a super-2 number, since 2×11111122210222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11111122210222.

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, 299860623 + ... + 299897674.

It is an arithmetic number, because the mean of its divisors is an integer number (1066070374695).

Almost surely, 2^{11111122210222} is an apocalyptic number.

11111122210222 is a deficient number, since it is larger than the sum of its proper divisors (5946003784898).

11111122210222 is a wasteful number, since it uses less digits than its factorization.

11111122210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599758515.

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

Adding to 11111122210222 its reverse (22201222111111), we get a palindrome (33312344321333).

The spelling of 11111122210222 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, two hundred twenty-two".