11011212222 has 16 divisors (see below), whose sum is σ = 23317861392. Its totient is φ = 3454497920.

The previous prime is 11011212221. The next prime is 11011212263. The reversal of 11011212222 is 22221211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011212221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53976429 + ... + 53976632.

It is an arithmetic number, because the mean of its divisors is an integer number (1457366337).

Almost surely, 2^11011212222 is an apocalyptic number.

11011212222 is an abundant number, since it is smaller than the sum of its proper divisors (12306649170).

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

11011212222 is a wasteful number, since it uses less digits than its factorization.

11011212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107953083.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11011212222 its reverse (22221211011), we get a palindrome (33232423233).

The spelling of 11011212222 in words is "eleven billion, eleven million, two hundred twelve thousand, two hundred twenty-two".