102216255 has 16 divisors (see below), whose sum is σ = 170657280. Its totient is φ = 52144928.

The previous prime is 102216253. The next prime is 102216259. The reversal of 102216255 is 552612201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102216255 - 2¹ = 102216253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102216251) 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, 147795 + ... + 148484.

It is an arithmetic number, because the mean of its divisors is an integer number (10666080).

Almost surely, 2^102216255 is an apocalyptic number.

102216255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102216255 is a deficient number, since it is larger than the sum of its proper divisors (68441025).

102216255 is a wasteful number, since it uses less digits than its factorization.

102216255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296310.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102216255 is about 10110.2054875260. The cubic root of 102216255 is about 467.5628405523.

Adding to 102216255 its reverse (552612201), we get a palindrome (654828456).

The spelling of 102216255 in words is "one hundred two million, two hundred sixteen thousand, two hundred fifty-five".