102212144 has 10 divisors (see below), whose sum is σ = 198036060. Its totient is φ = 51106064.

The previous prime is 102212141. The next prime is 102212213. The reversal of 102212144 is 441212201.

It is not an unprimeable number, because it can be changed into a prime (102212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194114 + ... + 3194145.

It is an arithmetic number, because the mean of its divisors is an integer number (19803606).

Almost surely, 2^102212144 is an apocalyptic number.

It is an amenable number.

102212144 is a deficient number, since it is larger than the sum of its proper divisors (95823916).

102212144 is an equidigital number, since it uses as much as digits as its factorization.

102212144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388267 (or 6388261 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 102212144 is about 10110.0021760631. The cubic root of 102212144 is about 467.5565722192.

Adding to 102212144 its reverse (441212201), we get a palindrome (543424345).

The spelling of 102212144 in words is "one hundred two million, two hundred twelve thousand, one hundred forty-four".