10201122221 has 8 divisors (see below), whose sum is σ = 10931324544. Its totient is φ = 9485379520.

The previous prime is 10201122203. The next prime is 10201122233. The reversal of 10201122221 is 12222110201.

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 10201122221 - 2¹⁰ = 10201121197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201122196 and 10201122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201121221) 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, 3613445 + ... + 3616266.

It is an arithmetic number, because the mean of its divisors is an integer number (1366415568).

Almost surely, 2^10201122221 is an apocalyptic number.

It is an amenable number.

10201122221 is a deficient number, since it is larger than the sum of its proper divisors (730202323).

10201122221 is an equidigital number, since it uses as much as digits as its factorization.

10201122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229811.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10201122221 its reverse (12222110201), we get a palindrome (22423232422).

It can be divided in two parts, 10201 and 122221, that multiplied together give a palindrome (1246776421).

The spelling of 10201122221 in words is "ten billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-one".