2201101121 has 4 divisors (see below), whose sum is σ = 2201314644. Its totient is φ = 2200887600.

The previous prime is 2201101099. The next prime is 2201101139. The reversal of 2201101121 is 1211011022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1201592896 + 999508225 = 34664^2 + 31615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201101121 is a prime.

It is a super-2 number, since 2×2201101121² = 9689692289734913282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201101921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90470 + ... + 112191.

It is an arithmetic number, because the mean of its divisors is an integer number (550328661).

Almost surely, 2^2201101121 is an apocalyptic number.

It is an amenable number.

2201101121 is a deficient number, since it is larger than the sum of its proper divisors (213523).

2201101121 is a wasteful number, since it uses less digits than its factorization.

2201101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213522.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2201101121 is about 46915.8941191575. The cubic root of 2201101121 is about 1300.8083968049.

Adding to 2201101121 its reverse (1211011022), we get a palindrome (3412112143).

Subtracting from 2201101121 its reverse (1211011022), we obtain a palindrome (990090099).

The spelling of 2201101121 in words is "two billion, two hundred one million, one hundred one thousand, one hundred twenty-one".