3527224042421 has 4 divisors (see below), whose sum is σ = 3562147052844. Its totient is φ = 3492301032000.

The previous prime is 3527224042373. The next prime is 3527224042423. The reversal of 3527224042421 is 1242404227253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3268722977521 + 258501064900 = 1807961^2 + 508430^2 .

It is a cyclic number.

It is not a de Polignac number, because 3527224042421 - 2³⁰ = 3526150300597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3527224042423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17461505060 + ... + 17461505261.

It is an arithmetic number, because the mean of its divisors is an integer number (890536763211).

Almost surely, 2^{3527224042421} is an apocalyptic number.

It is an amenable number.

3527224042421 is a deficient number, since it is larger than the sum of its proper divisors (34923010423).

3527224042421 is a wasteful number, since it uses less digits than its factorization.

3527224042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34923010422.

The product of its (nonzero) digits is 215040, while the sum is 38.

Adding to 3527224042421 its reverse (1242404227253), we get a palindrome (4769628269674).

The spelling of 3527224042421 in words is "three trillion, five hundred twenty-seven billion, two hundred twenty-four million, forty-two thousand, four hundred twenty-one".