52121167104221 has 2 divisors, whose sum is σ = 52121167104222. Its totient is φ = 52121167104220.

The previous prime is 52121167104173. The next prime is 52121167104233. The reversal of 52121167104221 is 12240176112125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40119175960900 + 12001991143321 = 6333970^2 + 3464389^2 .

It is a cyclic number.

It is not a de Polignac number, because 52121167104221 - 2⁶ = 52121167104157 is a prime.

It is a super-2 number, since 2×52121167104221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52121167104241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060583552110 + 26060583552111.

It is an arithmetic number, because the mean of its divisors is an integer number (26060583552111).

Almost surely, 2^{52121167104221} is an apocalyptic number.

It is an amenable number.

52121167104221 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121167104221 is an equidigital number, since it uses as much as digits as its factorization.

52121167104221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 52121167104221 in words is "fifty-two trillion, one hundred twenty-one billion, one hundred sixty-seven million, one hundred four thousand, two hundred twenty-one".