3521722022 has 48 divisors (see below), whose sum is σ = 6636378672. Its totient is φ = 1389286080.

The previous prime is 3521722021. The next prime is 3521722031. The reversal of 3521722022 is 2202271253.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 3521721982 and 3521722000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521722021) 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 23 ways as a sum of consecutive naturals, for example, 471497 + ... + 478907.

It is an arithmetic number, because the mean of its divisors is an integer number (138257889).

Almost surely, 2^3521722022 is an apocalyptic number.

3521722022 is a deficient number, since it is larger than the sum of its proper divisors (3114656650).

3521722022 is a wasteful number, since it uses less digits than its factorization.

3521722022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 3521722022 is about 59344.0984597458. The cubic root of 3521722022 is about 1521.4290032509.

Adding to 3521722022 its reverse (2202271253), we get a palindrome (5723993275).

The spelling of 3521722022 in words is "three billion, five hundred twenty-one million, seven hundred twenty-two thousand, twenty-two".