3896122110421 has 2 divisors, whose sum is σ = 3896122110422. Its totient is φ = 3896122110420.

The previous prime is 3896122110383. The next prime is 3896122110437. The reversal of 3896122110421 is 1240112216983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2405256690321 + 1490865420100 = 1550889^2 + 1221010^2 .

It is an emirp because it is prime and its reverse (1240112216983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3896122110421 - 2¹⁷ = 3896121979349 is a prime.

It is a super-2 number, since 2×3896122110421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3896122110451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1948061055210 + 1948061055211.

It is an arithmetic number, because the mean of its divisors is an integer number (1948061055211).

Almost surely, 2^{3896122110421} is an apocalyptic number.

It is an amenable number.

3896122110421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3896122110421 is an equidigital number, since it uses as much as digits as its factorization.

3896122110421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 3896122110421 in words is "three trillion, eight hundred ninety-six billion, one hundred twenty-two million, one hundred ten thousand, four hundred twenty-one".