102101216 has 24 divisors (see below), whose sum is σ = 229728240. Its totient is φ = 43757568.

The previous prime is 102101213. The next prime is 102101239. The reversal of 102101216 is 612101201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 102101216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101213) 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, 227681 + ... + 228128.

It is an arithmetic number, because the mean of its divisors is an integer number (9572010).

Almost surely, 2^102101216 is an apocalyptic number.

102101216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102101216 is an abundant number, since it is smaller than the sum of its proper divisors (127627024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102101216 is an equidigital number, since it uses as much as digits as its factorization.

102101216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455826 (or 455818 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 102101216 is about 10104.5146345582. The cubic root of 102101216 is about 467.3873689415.

Adding to 102101216 its reverse (612101201), we get a palindrome (714202417).

The spelling of 102101216 in words is "one hundred two million, one hundred one thousand, two hundred sixteen".