10111121110221 has 32 divisors (see below), whose sum is σ = 15026109557760. Its totient is φ = 6010207900416.

The previous prime is 10111121110201. The next prime is 10111121110229. The reversal of 10111121110221 is 12201112111101.

It is not a de Polignac number, because 10111121110221 - 2⁹ = 10111121109709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10111121110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111121110229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92278350 + ... + 92387856.

It is an arithmetic number, because the mean of its divisors is an integer number (469565923680).

Almost surely, 2^{10111121110221} is an apocalyptic number.

It is an amenable number.

10111121110221 is a deficient number, since it is larger than the sum of its proper divisors (4914988447539).

10111121110221 is a wasteful number, since it uses less digits than its factorization.

10111121110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204833.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10111121110221 its reverse (12201112111101), we get a palindrome (22312233221322).

The spelling of 10111121110221 in words is "ten trillion, one hundred eleven billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty-one".