2010223261 has 2 divisors, whose sum is σ = 2010223262. Its totient is φ = 2010223260.

The previous prime is 2010223249. The next prime is 2010223289. The reversal of 2010223261 is 1623220102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1889640900 + 120582361 = 43470^2 + 10981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010223261 - 2¹⁵ = 2010190493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010223291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005111630 + 1005111631.

It is an arithmetic number, because the mean of its divisors is an integer number (1005111631).

Almost surely, 2^2010223261 is an apocalyptic number.

It is an amenable number.

2010223261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010223261 is an equidigital number, since it uses as much as digits as its factorization.

2010223261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2010223261 is about 44835.5133906148. The cubic root of 2010223261 is about 1262.0641527377.

Adding to 2010223261 its reverse (1623220102), we get a palindrome (3633443363).

The spelling of 2010223261 in words is "two billion, ten million, two hundred twenty-three thousand, two hundred sixty-one".