11222122122222 has 32 divisors (see below), whose sum is σ = 24727052179584. Its totient is φ = 3366973332000.

The previous prime is 11222122122209. The next prime is 11222122122247. The reversal of 11222122122222 is 22222122122211.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11222122122192 and 11222122122201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841736668 + ... + 841749999.

It is an arithmetic number, because the mean of its divisors is an integer number (772720380612).

Almost surely, 2^{11222122122222} is an apocalyptic number.

11222122122222 is an abundant number, since it is smaller than the sum of its proper divisors (13504930057362).

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

11222122122222 is a wasteful number, since it uses less digits than its factorization.

11222122122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683486784.

The product of its digits is 1024, while the sum is 24.

Adding to 11222122122222 its reverse (22222122122211), we get a palindrome (33444244244433).

The spelling of 11222122122222 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".