3525511021421 has 2 divisors, whose sum is σ = 3525511021422. Its totient is φ = 3525511021420.

The previous prime is 3525511021367. The next prime is 3525511021499. The reversal of 3525511021421 is 1241201155253.

3525511021421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2775406062025 + 750104959396 = 1665955^2 + 866086^2 .

It is a cyclic number.

It is not a de Polignac number, because 3525511021421 - 2¹⁰ = 3525511020397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3525511021121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1762755510710 + 1762755510711.

It is an arithmetic number, because the mean of its divisors is an integer number (1762755510711).

Almost surely, 2^{3525511021421} is an apocalyptic number.

It is an amenable number.

3525511021421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3525511021421 is an equidigital number, since it uses as much as digits as its factorization.

3525511021421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 3525511021421 its reverse (1241201155253), we get a palindrome (4766712176674).

The spelling of 3525511021421 in words is "three trillion, five hundred twenty-five billion, five hundred eleven million, twenty-one thousand, four hundred twenty-one".