2201104021 has 2 divisors, whose sum is σ = 2201104022. Its totient is φ = 2201104020.

The previous prime is 2201104013. The next prime is 2201104027. The reversal of 2201104021 is 1204011022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2200923396 + 180625 = 46914^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201104021 - 2³ = 2201104013 is a prime.

It is a super-2 number, since 2×2201104021² = 9689717822524736882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2201103992 and 2201104010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201104027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100552010 + 1100552011.

It is an arithmetic number, because the mean of its divisors is an integer number (1100552011).

Almost surely, 2^2201104021 is an apocalyptic number.

It is an amenable number.

2201104021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201104021 is an equidigital number, since it uses as much as digits as its factorization.

2201104021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2201104021 is about 46915.9250255177. The cubic root of 2201104021 is about 1300.8089680860.

Adding to 2201104021 its reverse (1204011022), we get a palindrome (3405115043).

The spelling of 2201104021 in words is "two billion, two hundred one million, one hundred four thousand, twenty-one".