30222621 has 48 divisors (see below), whose sum is σ = 53569152. Its totient is φ = 16156800.

The previous prime is 30222607. The next prime is 30222623. The reversal of 30222621 is 12622203.

It is not a de Polignac number, because 30222621 - 2⁶ = 30222557 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30222594 and 30222603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29091 + ... + 30111.

It is an arithmetic number, because the mean of its divisors is an integer number (1116024).

Almost surely, 2^30222621 is an apocalyptic number.

It is an amenable number.

30222621 is a deficient number, since it is larger than the sum of its proper divisors (23346531).

30222621 is a wasteful number, since it uses less digits than its factorization.

30222621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30222621 is about 5497.5104365522. The cubic root of 30222621 is about 311.4899518997.

Adding to 30222621 its reverse (12622203), we get a palindrome (42844824).

The spelling of 30222621 in words is "thirty million, two hundred twenty-two thousand, six hundred twenty-one".