221102102000237 has 2 divisors, whose sum is σ = 221102102000238. Its totient is φ = 221102102000236.

The previous prime is 221102102000191. The next prime is 221102102000239. The reversal of 221102102000237 is 732000201201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192889071179401 + 28213030820836 = 13888451^2 + 5311594^2 .

It is a cyclic number.

It is not a de Polignac number, because 221102102000237 - 2³⁸ = 220827224093293 is a prime.

It is a super-2 number, since 2×221102102000237² (a number of 29 digits) contains 22 as substring.

Together with 221102102000239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221102102000239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551051000118 + 110551051000119.

It is an arithmetic number, because the mean of its divisors is an integer number (110551051000119).

Almost surely, 2^{221102102000237} is an apocalyptic number.

It is an amenable number.

221102102000237 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102102000237 is an equidigital number, since it uses as much as digits as its factorization.

221102102000237 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 23.

Adding to 221102102000237 its reverse (732000201201122), we get a palindrome (953102303201359).

The spelling of 221102102000237 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred two million, two hundred thirty-seven", and thus it is an aban number.