20215216134241 has 2 divisors, whose sum is σ = 20215216134242. Its totient is φ = 20215216134240.

The previous prime is 20215216134203. The next prime is 20215216134259. The reversal of 20215216134241 is 14243161251202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10757875206400 + 9457340927841 = 3279920^2 + 3075279^2 .

It is a cyclic number.

It is not a de Polignac number, because 20215216134241 - 2²³ = 20215207745633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20215216134197 and 20215216134206.

It is not a weakly prime, because it can be changed into another prime (20215216134041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107608067120 + 10107608067121.

It is an arithmetic number, because the mean of its divisors is an integer number (10107608067121).

Almost surely, 2^{20215216134241} is an apocalyptic number.

It is an amenable number.

20215216134241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20215216134241 is an equidigital number, since it uses as much as digits as its factorization.

20215216134241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 20215216134241 its reverse (14243161251202), we get a palindrome (34458377385443).

The spelling of 20215216134241 in words is "twenty trillion, two hundred fifteen billion, two hundred sixteen million, one hundred thirty-four thousand, two hundred forty-one".