11211200222222 has 128 divisors (see below), whose sum is σ = 22905362995200. Its totient is φ = 3973797273600.

The previous prime is 11211200222171. The next prime is 11211200222291. The reversal of 11211200222222 is 22222200211211.

It is a junction number, because it is equal to n+sod(n) for n = 11211200222194 and 11211200222203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450435554 + ... + 450460442.

It is an arithmetic number, because the mean of its divisors is an integer number (178948148400).

Almost surely, 2^{11211200222222} is an apocalyptic number.

11211200222222 is an abundant number, since it is smaller than the sum of its proper divisors (11694162772978).

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

11211200222222 is a wasteful number, since it uses less digits than its factorization.

11211200222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28162.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11211200222222 its reverse (22222200211211), we get a palindrome (33433400433433).

The spelling of 11211200222222 in words is "eleven trillion, two hundred eleven billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-two".