2202204121 has 4 divisors (see below), whose sum is σ = 2371604452. Its totient is φ = 2032803792.

The previous prime is 2202204091. The next prime is 2202204211. The reversal of 2202204121 is 1214022022.

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 1351665225 + 850538896 = 36765^2 + 29164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202204121 - 2²³ = 2193815513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202204095 and 2202204104.

It is not an unprimeable number, because it can be changed into a prime (2202214121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84700146 + ... + 84700171.

It is an arithmetic number, because the mean of its divisors is an integer number (592901113).

Almost surely, 2^2202204121 is an apocalyptic number.

It is an amenable number.

2202204121 is a deficient number, since it is larger than the sum of its proper divisors (169400331).

2202204121 is a wasteful number, since it uses less digits than its factorization.

2202204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169400330.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2202204121 is about 46927.6477249819. The cubic root of 2202204121 is about 1301.0256444437.

Adding to 2202204121 its reverse (1214022022), we get a palindrome (3416226143).

The spelling of 2202204121 in words is "two billion, two hundred two million, two hundred four thousand, one hundred twenty-one".