20122201 has 8 divisors (see below), whose sum is σ = 22708800. Its totient is φ = 17661840.

The previous prime is 20122199. The next prime is 20122213. The reversal of 20122201 is 10222102.

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 20122201 - 2¹ = 20122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31221 + ... + 31858.

It is an arithmetic number, because the mean of its divisors is an integer number (2838600).

Almost surely, 2^20122201 is an apocalyptic number.

It is an amenable number.

20122201 is a deficient number, since it is larger than the sum of its proper divisors (2586599).

20122201 is a wasteful number, since it uses less digits than its factorization.

20122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63119.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20122201 is about 4485.7776360404. Note that the first 3 decimals coincide. The cubic root of 20122201 is about 271.9934804161.

Adding to 20122201 its reverse (10222102), we get a palindrome (30344303).

Subtracting from 20122201 its reverse (10222102), we obtain a palindrome (9900099).

It can be divided in two parts, 20 and 122201, that added together give a palindrome (122221).

The spelling of 20122201 in words is "twenty million, one hundred twenty-two thousand, two hundred one".