29522221 has 8 divisors (see below), whose sum is σ = 30012800. Its totient is φ = 29034720.

The previous prime is 29522201. The next prime is 29522237. The reversal of 29522221 is 12222592.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29522221 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 (29522201) 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 7 ways as a sum of consecutive naturals, for example, 25585 + ... + 26713.

It is an arithmetic number, because the mean of its divisors is an integer number (3751600).

Almost surely, 2^29522221 is an apocalyptic number.

It is an amenable number.

29522221 is a deficient number, since it is larger than the sum of its proper divisors (490579).

29522221 is a wasteful number, since it uses less digits than its factorization.

29522221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539.

The product of its digits is 1440, while the sum is 25.

The square root of 29522221 is about 5433.4354693877. The cubic root of 29522221 is about 309.0648928270.

The spelling of 29522221 in words is "twenty-nine million, five hundred twenty-two thousand, two hundred twenty-one".