11111012222022 has 128 divisors (see below), whose sum is σ = 25958654392320. Its totient is φ = 3516066385920.

The previous prime is 11111012222017. The next prime is 11111012222047. The reversal of 11111012222022 is 22022221011111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11111012221986 and 11111012222004.

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, 89937318 + ... + 90060774.

It is an arithmetic number, because the mean of its divisors is an integer number (202801987440).

Almost surely, 2^{11111012222022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11111012222022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12979327196160).

11111012222022 is an abundant number, since it is smaller than the sum of its proper divisors (14847642170298).

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

11111012222022 is a wasteful number, since it uses less digits than its factorization.

11111012222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124035 (or 124029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11111012222022 its reverse (22022221011111), we get a palindrome (33133233233133).

The spelling of 11111012222022 in words is "eleven trillion, one hundred eleven billion, twelve million, two hundred twenty-two thousand, twenty-two".