2234221537 has 2 divisors, whose sum is σ = 2234221538. Its totient is φ = 2234221536.

The previous prime is 2234221529. The next prime is 2234221543. The reversal of 2234221537 is 7351224322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261031121 + 973190416 = 35511^2 + 31196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2234221537 - 2³ = 2234221529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2234221499 and 2234221508.

It is not a weakly prime, because it can be changed into another prime (2234221037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117110768 + 1117110769.

It is an arithmetic number, because the mean of its divisors is an integer number (1117110769).

Almost surely, 2^2234221537 is an apocalyptic number.

It is an amenable number.

2234221537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2234221537 is an equidigital number, since it uses as much as digits as its factorization.

2234221537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 2234221537 is about 47267.5526868062. The cubic root of 2234221537 is about 1307.3004519089.

Adding to 2234221537 its reverse (7351224322), we get a palindrome (9585445859).

The spelling of 2234221537 in words is "two billion, two hundred thirty-four million, two hundred twenty-one thousand, five hundred thirty-seven".