102200111 has 4 divisors (see below), whose sum is σ = 110061672. Its totient is φ = 94338552.

The previous prime is 102200101. The next prime is 102200117. The reversal of 102200111 is 111002201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102200111 - 2⁶ = 102200047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3930761 + ... + 3930786.

It is an arithmetic number, because the mean of its divisors is an integer number (27515418).

Almost surely, 2^102200111 is an apocalyptic number.

102200111 is a deficient number, since it is larger than the sum of its proper divisors (7861561).

102200111 is an equidigital number, since it uses as much as digits as its factorization.

102200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7861560.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 102200111 is about 10109.4070548178. The cubic root of 102200111 is about 467.5382236851.

Adding to 102200111 its reverse (111002201), we get a palindrome (213202312).

The spelling of 102200111 in words is "one hundred two million, two hundred thousand, one hundred eleven".