102111102220221 has 16 divisors (see below), whose sum is σ = 151349035096320. Its totient is φ = 68041070500320.

The previous prime is 102111102220151. The next prime is 102111102220241. The reversal of 102111102220221 is 122022201111201.

102111102220221 is a `hidden beast` number, since 1 + 0 + 211 + 1 + 10 + 2 + 220 + 221 = 666.

It is not a de Polignac number, because 102111102220221 - 2¹⁵ = 102111102187453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102111102220194 and 102111102220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111102220241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916544560 + ... + 916655961.

It is an arithmetic number, because the mean of its divisors is an integer number (9459314693520).

Almost surely, 2^{102111102220221} is an apocalyptic number.

It is an amenable number.

102111102220221 is a deficient number, since it is larger than the sum of its proper divisors (49237932876099).

102111102220221 is a wasteful number, since it uses less digits than its factorization.

102111102220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833202593 (or 1833202587 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102111102220221 its reverse (122022201111201), we get a palindrome (224133303331422).

The spelling of 102111102220221 in words is "one hundred two trillion, one hundred eleven billion, one hundred two million, two hundred twenty thousand, two hundred twenty-one".