111021110010221 has 32 divisors (see below), whose sum is σ = 118643390807040. Its totient is φ = 103522821292800.

The previous prime is 111021110010193. The next prime is 111021110010227. The reversal of 111021110010221 is 122010011120111.

It is a cyclic number.

It is not a de Polignac number, because 111021110010221 - 2⁶ = 111021110010157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111021110010196 and 111021110010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021110010227) 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, 7516146566 + ... + 7516161336.

It is an arithmetic number, because the mean of its divisors is an integer number (3707605962720).

Almost surely, 2^{111021110010221} is an apocalyptic number.

It is an amenable number.

111021110010221 is a deficient number, since it is larger than the sum of its proper divisors (7622280796819).

111021110010221 is a wasteful number, since it uses less digits than its factorization.

111021110010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20225.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111021110010221 its reverse (122010011120111), we get a palindrome (233031121130332).

The spelling of 111021110010221 in words is "one hundred eleven trillion, twenty-one billion, one hundred ten million, ten thousand, two hundred twenty-one".