35221065421 has 4 divisors (see below), whose sum is σ = 35227548892. Its totient is φ = 35214581952.

The previous prime is 35221065371. The next prime is 35221065461. The reversal of 35221065421 is 12456012253.

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 7360782025 + 27860283396 = 85795^2 + 166914^2 .

It is a cyclic number.

It is not a de Polignac number, because 35221065421 - 2¹¹ = 35221063373 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 (35221065461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233580 + ... + 3244453.

It is an arithmetic number, because the mean of its divisors is an integer number (8806887223).

Almost surely, 2^35221065421 is an apocalyptic number.

It is an amenable number.

35221065421 is a deficient number, since it is larger than the sum of its proper divisors (6483471).

35221065421 is an equidigital number, since it uses as much as digits as its factorization.

35221065421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483470.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 35221065421 its reverse (12456012253), we get a palindrome (47677077674).

The spelling of 35221065421 in words is "thirty-five billion, two hundred twenty-one million, sixty-five thousand, four hundred twenty-one".