102111200220111 has 32 divisors (see below), whose sum is σ = 141010267326720. Its totient is φ = 65648735712000.

The previous prime is 102111200220101. The next prime is 102111200220121. The reversal of 102111200220111 is 111022002111201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102111200220101) and next prime (102111200220121).

It is not a de Polignac number, because 102111200220111 - 2⁷ = 102111200219983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111200220101) 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, 417867876 + ... + 418112166.

It is an arithmetic number, because the mean of its divisors is an integer number (4406570853960).

Almost surely, 2^{102111200220111} is an apocalyptic number.

102111200220111 is a deficient number, since it is larger than the sum of its proper divisors (38899067106609).

102111200220111 is a wasteful number, since it uses less digits than its factorization.

102111200220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250007.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102111200220111 its reverse (111022002111201), we get a palindrome (213133202331312).

The spelling of 102111200220111 in words is "one hundred two trillion, one hundred eleven billion, two hundred million, two hundred twenty thousand, one hundred eleven".