2201122120122 has 80 divisors (see below), whose sum is σ = 5257449225600. Its totient is φ = 686292497280.

The previous prime is 2201122120111. The next prime is 2201122120177. The reversal of 2201122120122 is 2210212211022.

It is a happy number.

2201122120122 is a `hidden beast` number, since 220 + 1 + 1 + 221 + 201 + 22 = 666.

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 = 2201122120095 and 2201122120104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4282879 + ... + 4769202.

It is an arithmetic number, because the mean of its divisors is an integer number (65718115320).

Almost surely, 2^{2201122120122} is an apocalyptic number.

2201122120122 is an abundant number, since it is smaller than the sum of its proper divisors (3056327105478).

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

2201122120122 is a wasteful number, since it uses less digits than its factorization.

2201122120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052193 (or 9052184 counting only the distinct ones).

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

Adding to 2201122120122 its reverse (2210212211022), we get a palindrome (4411334331144).

The spelling of 2201122120122 in words is "two trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-two".