11011101021222 has 64 divisors (see below), whose sum is σ = 22651187328000. Its totient is φ = 3566275257600.

The previous prime is 11011101021211. The next prime is 11011101021223. The reversal of 11011101021222 is 22212010111011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011101021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183234793 + ... + 183294875.

It is an arithmetic number, because the mean of its divisors is an integer number (353924802000).

Almost surely, 2^{11011101021222} is an apocalyptic number.

11011101021222 is an abundant number, since it is smaller than the sum of its proper divisors (11640086306778).

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

11011101021222 is a wasteful number, since it uses less digits than its factorization.

11011101021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63149.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11011101021222 its reverse (22212010111011), we get a palindrome (33223111132233).

The spelling of 11011101021222 in words is "eleven trillion, eleven billion, one hundred one million, twenty-one thousand, two hundred twenty-two".