11121021122 has 4 divisors (see below), whose sum is σ = 16681531686. Its totient is φ = 5560510560.

The previous prime is 11121021089. The next prime is 11121021151. The reversal of 11121021122 is 22112012111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10354894081 + 766127041 = 101759^2 + 27679^2 .

It is a super-2 number, since 2×11121021122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121021097 and 11121021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780255279 + ... + 2780255282.

Almost surely, 2^11121021122 is an apocalyptic number.

11121021122 is a deficient number, since it is larger than the sum of its proper divisors (5560510564).

11121021122 is an equidigital number, since it uses as much as digits as its factorization.

11121021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560510563.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11121021122 its reverse (22112012111), we get a palindrome (33233033233).

The spelling of 11121021122 in words is "eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".