1121001223122 has 96 divisors (see below), whose sum is σ = 2817008378496. Its totient is φ = 318797107200.

The previous prime is 1121001223093. The next prime is 1121001223169. The reversal of 1121001223122 is 2213221001211.

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 = 1121001223095 and 1121001223104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2080879 + ... + 2563602.

It is an arithmetic number, because the mean of its divisors is an integer number (29343837276).

Almost surely, 2^{1121001223122} is an apocalyptic number.

1121001223122 is an abundant number, since it is smaller than the sum of its proper divisors (1696007155374).

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

1121001223122 is a wasteful number, since it uses less digits than its factorization.

1121001223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644576 (or 4644573 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1121001223122 its reverse (2213221001211), we get a palindrome (3334222224333).

The spelling of 1121001223122 in words is "one trillion, one hundred twenty-one billion, one million, two hundred twenty-three thousand, one hundred twenty-two".