102033221 has 4 divisors (see below), whose sum is σ = 106469472. Its totient is φ = 97596972.

The previous prime is 102033203. The next prime is 102033229. The reversal of 102033221 is 122330201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102033221 - 2⁶ = 102033157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102033196 and 102033205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102033229) 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 in 3 ways as a sum of consecutive naturals, for example, 2218091 + ... + 2218136.

It is an arithmetic number, because the mean of its divisors is an integer number (26617368).

Almost surely, 2^102033221 is an apocalyptic number.

It is an amenable number.

102033221 is a deficient number, since it is larger than the sum of its proper divisors (4436251).

102033221 is an equidigital number, since it uses as much as digits as its factorization.

102033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436250.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102033221 is about 10101.1494890433. The cubic root of 102033221 is about 467.2835926343.

Adding to 102033221 its reverse (122330201), we get a palindrome (224363422).

The spelling of 102033221 in words is "one hundred two million, thirty-three thousand, two hundred twenty-one".