3522112021 has 2 divisors, whose sum is σ = 3522112022. Its totient is φ = 3522112020.

The previous prime is 3522112019. The next prime is 3522112057. The reversal of 3522112021 is 1202112253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3426346225 + 95765796 = 58535^2 + 9786^2 .

It is an emirp because it is prime and its reverse (1202112253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3522112021 - 2¹ = 3522112019 is a prime.

It is a super-4 number, since 4×3522112021⁴ (a number of 39 digits) contains 4444 as substring.

Together with 3522112019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3522112021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3522112091) 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 as a sum of consecutive naturals, namely, 1761056010 + 1761056011.

It is an arithmetic number, because the mean of its divisors is an integer number (1761056011).

Almost surely, 2^3522112021 is an apocalyptic number.

It is an amenable number.

3522112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3522112021 is an equidigital number, since it uses as much as digits as its factorization.

3522112021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 3522112021 is about 59347.3842810279. The cubic root of 3522112021 is about 1521.4851626983.

Adding to 3522112021 its reverse (1202112253), we get a palindrome (4724224274).

The spelling of 3522112021 in words is "three billion, five hundred twenty-two million, one hundred twelve thousand, twenty-one".