10111022220221 has 8 divisors (see below), whose sum is σ = 10955595574560. Its totient is φ = 9275992067952.

The previous prime is 10111022220179. The next prime is 10111022220253. The reversal of 10111022220221 is 12202222011101.

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 10111022220221 - 2⁶ = 10111022220157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10111022220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111022220421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2385798311 + ... + 2385802548.

It is an arithmetic number, because the mean of its divisors is an integer number (1369449446820).

Almost surely, 2^{10111022220221} is an apocalyptic number.

It is an amenable number.

10111022220221 is a deficient number, since it is larger than the sum of its proper divisors (844573354339).

10111022220221 is a wasteful number, since it uses less digits than its factorization.

10111022220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771601035.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10111022220221 its reverse (12202222011101), we get a palindrome (22313244231322).

It can be divided in two parts, 1011102 and 2220221, that added together give a palindrome (3231323).

The spelling of 10111022220221 in words is "ten trillion, one hundred eleven billion, twenty-two million, two hundred twenty thousand, two hundred twenty-one".