1121112220122 has 24 divisors (see below), whose sum is σ = 2429095949280. Its totient is φ = 373701077640.

The previous prime is 1121112220031. The next prime is 1121112220127. The reversal of 1121112220122 is 2210222111211.

It is a super-2 number, since 2×1121112220122² (a number of 25 digits) contains 22 as substring.

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 = 1121112220095 and 1121112220104.

It is not an unprimeable number, because it can be changed into a prime (1121112220127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4253829 + ... + 4509687.

It is an arithmetic number, because the mean of its divisors is an integer number (101212331220).

Almost surely, 2^{1121112220122} is an apocalyptic number.

1121112220122 is an abundant number, since it is smaller than the sum of its proper divisors (1307983729158).

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

1121112220122 is a wasteful number, since it uses less digits than its factorization.

1121112220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499298 (or 499295 counting only the distinct ones).

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

Adding to 1121112220122 its reverse (2210222111211), we get a palindrome (3331334331333).

The spelling of 1121112220122 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-two".