2202213121 has 4 divisors (see below), whose sum is σ = 2203042752. Its totient is φ = 2201383492.

The previous prime is 2202213103. The next prime is 2202213149. The reversal of 2202213121 is 1213122022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2202213121 - 2⁵ = 2202213089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202213095 and 2202213104.

It is not an unprimeable number, because it can be changed into a prime (2202213161) 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, 410821 + ... + 416146.

It is an arithmetic number, because the mean of its divisors is an integer number (550760688).

Almost surely, 2^2202213121 is an apocalyptic number.

It is an amenable number.

2202213121 is a deficient number, since it is larger than the sum of its proper divisors (829631).

2202213121 is an equidigital number, since it uses as much as digits as its factorization.

2202213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829630.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2202213121 is about 46927.7436171824. The cubic root of 2202213121 is about 1301.0274167915.

Adding to 2202213121 its reverse (1213122022), we get a palindrome (3415335143).

The spelling of 2202213121 in words is "two billion, two hundred two million, two hundred thirteen thousand, one hundred twenty-one".