2201120121 has 16 divisors (see below), whose sum is σ = 3078284544. Its totient is φ = 1397372544.

The previous prime is 2201120111. The next prime is 2201120147. The reversal of 2201120121 is 1210211022.

2201120121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2201120121 - 2²⁷ = 2066902393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201120097 and 2201120106.

It is not an unprimeable number, because it can be changed into a prime (2201120111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205740 + ... + 216173.

It is an arithmetic number, because the mean of its divisors is an integer number (192392784).

Almost surely, 2^2201120121 is an apocalyptic number.

It is an amenable number.

2201120121 is a deficient number, since it is larger than the sum of its proper divisors (877164423).

2201120121 is a wasteful number, since it uses less digits than its factorization.

2201120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422000.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2201120121 is about 46916.0966087333. The cubic root of 2201120121 is about 1300.8121396722.

Adding to 2201120121 its reverse (1210211022), we get a palindrome (3411331143).

Subtracting from 2201120121 its reverse (1210211022), we obtain a palindrome (990909099).

The spelling of 2201120121 in words is "two billion, two hundred one million, one hundred twenty thousand, one hundred twenty-one".