2201120222121 has 24 divisors (see below), whose sum is σ = 3302014589640. Its totient is φ = 1411711462656.

The previous prime is 2201120222113. The next prime is 2201120222183. The reversal of 2201120222121 is 1212220211022.

It is a happy number.

2201120222121 is a `hidden beast` number, since 2 + 201 + 120 + 222 + 121 = 666.

2201120222121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 440615836521 + 1760504385600 = 663789^2 + 1326840^2 .

It is not a de Polignac number, because 2201120222121 - 2³ = 2201120222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201120222094 and 2201120222103.

It is not an unprimeable number, because it can be changed into a prime (2201120222101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37105030 + ... + 37164303.

It is an arithmetic number, because the mean of its divisors is an integer number (137583941235).

Almost surely, 2^{2201120222121} is an apocalyptic number.

It is an amenable number.

2201120222121 is a deficient number, since it is larger than the sum of its proper divisors (1100894367519).

2201120222121 is a wasteful number, since it uses less digits than its factorization.

2201120222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74269465 (or 74269462 counting only the distinct ones).

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

Adding to 2201120222121 its reverse (1212220211022), we get a palindrome (3413340433143).

The spelling of 2201120222121 in words is "two trillion, two hundred one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".