2203214021 has 2 divisors, whose sum is σ = 2203214022. Its totient is φ = 2203214020.

The previous prime is 2203214003. The next prime is 2203214053. The reversal of 2203214021 is 1204123022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1249269025 + 953944996 = 35345^2 + 30886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2203214021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2203214621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101607010 + 1101607011.

It is an arithmetic number, because the mean of its divisors is an integer number (1101607011).

Almost surely, 2^2203214021 is an apocalyptic number.

It is an amenable number.

2203214021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203214021 is an equidigital number, since it uses as much as digits as its factorization.

2203214021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2203214021 is about 46938.4066730007. The cubic root of 2203214021 is about 1301.2244914369.

Adding to 2203214021 its reverse (1204123022), we get a palindrome (3407337043).

Subtracting from 2203214021 its reverse (1204123022), we obtain a palindrome (999090999).

The spelling of 2203214021 in words is "two billion, two hundred three million, two hundred fourteen thousand, twenty-one".