22100212237 has 2 divisors, whose sum is σ = 22100212238. Its totient is φ = 22100212236.

The previous prime is 22100212223. The next prime is 22100212241. The reversal of 22100212237 is 73221200122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15016296681 + 7083915556 = 122541^2 + 84166^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100212237 - 2¹¹ = 22100210189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22100212217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050106118 + 11050106119.

It is an arithmetic number, because the mean of its divisors is an integer number (11050106119).

Almost surely, 2^22100212237 is an apocalyptic number.

It is an amenable number.

22100212237 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100212237 is an equidigital number, since it uses as much as digits as its factorization.

22100212237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 22100212237 its reverse (73221200122), we get a palindrome (95321412359).

The spelling of 22100212237 in words is "twenty-two billion, one hundred million, two hundred twelve thousand, two hundred thirty-seven".