11203122222 has 24 divisors (see below), whose sum is σ = 24283120680. Its totient is φ = 3732883440.

The previous prime is 11203122197. The next prime is 11203122223. The reversal of 11203122222 is 22222130211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11203122195 and 11203122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203122223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77397 + ... + 168512.

It is an arithmetic number, because the mean of its divisors is an integer number (1011796695).

Almost surely, 2^11203122222 is an apocalyptic number.

11203122222 is an abundant number, since it is smaller than the sum of its proper divisors (13079998458).

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

11203122222 is a wasteful number, since it uses less digits than its factorization.

11203122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248448 (or 248445 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11203122222 its reverse (22222130211), we get a palindrome (33425252433).

The spelling of 11203122222 in words is "eleven billion, two hundred three million, one hundred twenty-two thousand, two hundred twenty-two".