10221055 has 8 divisors (see below), whose sum is σ = 13208832. Its totient is φ = 7547808.

The previous prime is 10221053. The next prime is 10221067. The reversal of 10221055 is 55012201.

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

It is a cyclic number.

It is not a de Polignac number, because 10221055 - 2¹ = 10221053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78559 + ... + 78688.

It is an arithmetic number, because the mean of its divisors is an integer number (1651104).

Almost surely, 2^10221055 is an apocalyptic number.

10221055 is a deficient number, since it is larger than the sum of its proper divisors (2987777).

10221055 is a wasteful number, since it uses less digits than its factorization.

10221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157265.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 10221055 is about 3197.0384733375. The cubic root of 10221055 is about 217.0194083174.

Adding to 10221055 its reverse (55012201), we get a palindrome (65233256).

The spelling of 10221055 in words is "ten million, two hundred twenty-one thousand, fifty-five".