10111122112222 has 4 divisors (see below), whose sum is σ = 15166683168336. Its totient is φ = 5055561056110.

The previous prime is 10111122112207. The next prime is 10111122112253. The reversal of 10111122112222 is 22221122111101.

It is a happy number.

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 10111122112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527780528054 + ... + 2527780528057.

It is an arithmetic number, because the mean of its divisors is an integer number (3791670792084).

Almost surely, 2^{10111122112222} is an apocalyptic number.

10111122112222 is a deficient number, since it is larger than the sum of its proper divisors (5055561056114).

10111122112222 is an equidigital number, since it uses as much as digits as its factorization.

10111122112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055561056113.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 10111122112222 its reverse (22221122111101), we get a palindrome (32332244223323).

The spelling of 10111122112222 in words is "ten trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".