35421224543521 has 4 divisors (see below), whose sum is σ = 35421236947332. Its totient is φ = 35421212139712.

The previous prime is 35421224543503. The next prime is 35421224543543. The reversal of 35421224543521 is 12534542212453.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19213844889600 + 16207379653921 = 4383360^2 + 4025839^2 .

It is a cyclic number.

It is not a de Polignac number, because 35421224543521 - 2³⁷ = 35283785590049 is a prime.

It is a super-3 number, since 3×35421224543521³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35421224543561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484581 + ... + 8430733.

It is an arithmetic number, because the mean of its divisors is an integer number (8855309236833).

Almost surely, 2^{35421224543521} is an apocalyptic number.

It is an amenable number.

35421224543521 is a deficient number, since it is larger than the sum of its proper divisors (12403811).

35421224543521 is an equidigital number, since it uses as much as digits as its factorization.

35421224543521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403810.

The product of its digits is 1152000, while the sum is 43.

Adding to 35421224543521 its reverse (12534542212453), we get a palindrome (47955766755974).

The spelling of 35421224543521 in words is "thirty-five trillion, four hundred twenty-one billion, two hundred twenty-four million, five hundred forty-three thousand, five hundred twenty-one".