102221147 has 8 divisors (see below), whose sum is σ = 117024000. Its totient is φ = 87468264.

The previous prime is 102221137. The next prime is 102221149. The reversal of 102221147 is 741122201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102221147 - 2¹⁰ = 102220123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7997 + ... + 16382.

It is an arithmetic number, because the mean of its divisors is an integer number (14628000).

Almost surely, 2^102221147 is an apocalyptic number.

102221147 is a deficient number, since it is larger than the sum of its proper divisors (14802853).

102221147 is an equidigital number, since it uses as much as digits as its factorization.

102221147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24985.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 102221147 is about 10110.4474183886. The cubic root of 102221147 is about 467.5702995125.

Adding to 102221147 its reverse (741122201), we get a palindrome (843343348).

The spelling of 102221147 in words is "one hundred two million, two hundred twenty-one thousand, one hundred forty-seven".