2010223121 has 2 divisors, whose sum is σ = 2010223122. Its totient is φ = 2010223120.

The previous prime is 2010223093. The next prime is 2010223129. The reversal of 2010223121 is 1213220102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1992372496 + 17850625 = 44636^2 + 4225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2010223121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2010223096 and 2010223105.

It is not a weakly prime, because it can be changed into another prime (2010223129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005111560 + 1005111561.

It is an arithmetic number, because the mean of its divisors is an integer number (1005111561).

Almost surely, 2^2010223121 is an apocalyptic number.

It is an amenable number.

2010223121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010223121 is an equidigital number, since it uses as much as digits as its factorization.

2010223121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2010223121 is about 44835.5118293524. The cubic root of 2010223121 is about 1262.0641234393.

Adding to 2010223121 its reverse (1213220102), we get a palindrome (3223443223).

The spelling of 2010223121 in words is "two billion, ten million, two hundred twenty-three thousand, one hundred twenty-one".