2204121001 has 2 divisors, whose sum is σ = 2204121002. Its totient is φ = 2204121000.

The previous prime is 2204120993. The next prime is 2204121013. The reversal of 2204121001 is 1001214022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1950547225 + 253573776 = 44165^2 + 15924^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204121001 - 2³ = 2204120993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2204121061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102060500 + 1102060501.

It is an arithmetic number, because the mean of its divisors is an integer number (1102060501).

Almost surely, 2^2204121001 is an apocalyptic number.

It is an amenable number.

2204121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204121001 is an equidigital number, since it uses as much as digits as its factorization.

2204121001 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 2204121001 is about 46948.0670635118. The cubic root of 2204121001 is about 1301.4030219335.

Adding to 2204121001 its reverse (1001214022), we get a palindrome (3205335023).

The spelling of 2204121001 in words is "two billion, two hundred four million, one hundred twenty-one thousand, one".