2200261221 has 6 divisors (see below), whose sum is σ = 3178155110. Its totient is φ = 1466840808.

The previous prime is 2200261207. The next prime is 2200261241. The reversal of 2200261221 is 1221620022.

It can be written as a sum of positive squares in only one way, i.e., 1902180996 + 298080225 = 43614^2 + 17265^2 .

It is not a de Polignac number, because 2200261221 - 2⁷ = 2200261093 is a prime.

It is a super-2 number, since 2×2200261221² = 9682298881272821682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200261194 and 2200261203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200261201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122236726 + ... + 122236743.

Almost surely, 2^2200261221 is an apocalyptic number.

It is an amenable number.

2200261221 is a deficient number, since it is larger than the sum of its proper divisors (977893889).

2200261221 is a wasteful number, since it uses less digits than its factorization.

2200261221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244473475 (or 244473472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2200261221 is about 46906.9421407962. The cubic root of 2200261221 is about 1300.6429208442.

Adding to 2200261221 its reverse (1221620022), we get a palindrome (3421881243).

The spelling of 2200261221 in words is "two billion, two hundred million, two hundred sixty-one thousand, two hundred twenty-one".