2237220509 has 2 divisors, whose sum is σ = 2237220510. Its totient is φ = 2237220508.

The previous prime is 2237220481. The next prime is 2237220541. The reversal of 2237220509 is 9050227322.

It is an a-pointer prime, because the next prime (2237220541) can be obtained adding 2237220509 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1365672025 + 871548484 = 36955^2 + 29522^2 .

It is a cyclic number.

It is not a de Polignac number, because 2237220509 - 2²⁸ = 1968785053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2237222509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118610254 + 1118610255.

It is an arithmetic number, because the mean of its divisors is an integer number (1118610255).

Almost surely, 2^2237220509 is an apocalyptic number.

It is an amenable number.

2237220509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2237220509 is an equidigital number, since it uses as much as digits as its factorization.

2237220509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 2237220509 is about 47299.2654171288. The cubic root of 2237220509 is about 1307.8851155928.

The spelling of 2237220509 in words is "two billion, two hundred thirty-seven million, two hundred twenty thousand, five hundred nine".