3623022221 has 16 divisors (see below), whose sum is σ = 4550112000. Its totient is φ = 2866563504.

The previous prime is 3623022211. The next prime is 3623022223. The reversal of 3623022221 is 1222203263.

It is not a de Polignac number, because 3623022221 - 2²² = 3618827917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3623022223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401801 + ... + 410718.

It is an arithmetic number, because the mean of its divisors is an integer number (284382000).

Almost surely, 2^3623022221 is an apocalyptic number.

It is an amenable number.

3623022221 is a deficient number, since it is larger than the sum of its proper divisors (927089779).

3623022221 is an equidigital number, since it uses as much as digits as its factorization.

3623022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812553 (or 812539 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3623022221 is about 60191.5460924539. The cubic root of 3623022221 is about 1535.8789889758.

Adding to 3623022221 its reverse (1222203263), we get a palindrome (4845225484).

The spelling of 3623022221 in words is "three billion, six hundred twenty-three million, twenty-two thousand, two hundred twenty-one".