11011111121222 has 16 divisors (see below), whose sum is σ = 16868428899840. Its totient is φ = 5388306262728.

The previous prime is 11011111121189. The next prime is 11011111121243. The reversal of 11011111121222 is 22212111111011.

11011111121222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11011111121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542573 + ... + 5879799.

It is an arithmetic number, because the mean of its divisors is an integer number (1054276806240).

Almost surely, 2^{11011111121222} is an apocalyptic number.

11011111121222 is a deficient number, since it is larger than the sum of its proper divisors (5857317778618).

11011111121222 is a wasteful number, since it uses less digits than its factorization.

11011111121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387395.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11011111121222 its reverse (22212111111011), we get a palindrome (33223222232233).

The spelling of 11011111121222 in words is "eleven trillion, eleven billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".