102216344 has 8 divisors (see below), whose sum is σ = 191655660. Its totient is φ = 51108168.

The previous prime is 102216337. The next prime is 102216349. The reversal of 102216344 is 443612201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×102216344⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102216349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388514 + ... + 6388529.

Almost surely, 2^102216344 is an apocalyptic number.

It is an amenable number.

102216344 is a deficient number, since it is larger than the sum of its proper divisors (89439316).

102216344 is a wasteful number, since it uses less digits than its factorization.

102216344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777049 (or 12777045 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 102216344 is about 10110.2098890181. The cubic root of 102216344 is about 467.5629762550.

Adding to 102216344 its reverse (443612201), we get a palindrome (545828545).

The spelling of 102216344 in words is "one hundred two million, two hundred sixteen thousand, three hundred forty-four".