11111200022222 has 4 divisors (see below), whose sum is σ = 16666800033336. Its totient is φ = 5555600011110.

The previous prime is 11111200022191. The next prime is 11111200022227. The reversal of 11111200022222 is 22222000211111.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11111200022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111200022227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777800005554 + ... + 2777800005557.

It is an arithmetic number, because the mean of its divisors is an integer number (4166700008334).

Almost surely, 2^{11111200022222} is an apocalyptic number.

11111200022222 is a deficient number, since it is larger than the sum of its proper divisors (5555600011114).

11111200022222 is an equidigital number, since it uses as much as digits as its factorization.

11111200022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555600011113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11111200022222 its reverse (22222000211111), we get a palindrome (33333200233333).

The spelling of 11111200022222 in words is "eleven trillion, one hundred eleven billion, two hundred million, twenty-two thousand, two hundred twenty-two".