1122122011122 has 224 divisors, whose sum is σ = 2924971668864. Its totient is φ = 316094400000.

The previous prime is 1122122011051. The next prime is 1122122011163. The reversal of 1122122011122 is 2211102212211.

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 = 1122122011095 and 1122122011104.

It is an unprimeable number.

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 111 ways as a sum of consecutive naturals, for example, 258730138 + ... + 258734474.

It is an arithmetic number, because the mean of its divisors is an integer number (13057909236).

Almost surely, 2^{1122122011122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122122011122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462485834432).

1122122011122 is an abundant number, since it is smaller than the sum of its proper divisors (1802849657742).

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

1122122011122 is a wasteful number, since it uses less digits than its factorization.

1122122011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716 (or 4701 counting only the distinct ones).

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

Adding to 1122122011122 its reverse (2211102212211), we get a palindrome (3333224223333).

The spelling of 1122122011122 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, eleven thousand, one hundred twenty-two".