11122220122002 has 36 divisors (see below), whose sum is σ = 26488042141470. Its totient is φ = 3370369733280.

The previous prime is 11122220121989. The next prime is 11122220122063. The reversal of 11122220122002 is 20022102222111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10523529512001 + 598690610001 = 3243999^2 + 773751^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2553308227 + ... + 2553312582.

Almost surely, 2^{11122220122002} is an apocalyptic number.

11122220122002 is an abundant number, since it is smaller than the sum of its proper divisors (15365822019468).

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

11122220122002 is a wasteful number, since it uses less digits than its factorization.

11122220122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106620839 (or 5106620825 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11122220122002 its reverse (20022102222111), we get a palindrome (31144322344113).

The spelling of 11122220122002 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, two".