1121221111122 has 48 divisors (see below), whose sum is σ = 2798218156032. Its totient is φ = 317826452160.

The previous prime is 1121221111117. The next prime is 1121221111159. The reversal of 1121221111122 is 2211111221211.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1121221111095 and 1121221111104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35017779 + ... + 35049782.

It is an arithmetic number, because the mean of its divisors is an integer number (58296211584).

Almost surely, 2^{1121221111122} is an apocalyptic number.

1121221111122 is an abundant number, since it is smaller than the sum of its proper divisors (1676997044910).

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

1121221111122 is a wasteful number, since it uses less digits than its factorization.

1121221111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70067703 (or 70067700 counting only the distinct ones).

The product of its digits is 32, while the sum is 18.

Adding to 1121221111122 its reverse (2211111221211), we get a palindrome (3332332332333).

The spelling of 1121221111122 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".