102234021 has 4 divisors (see below), whose sum is σ = 136312032. Its totient is φ = 68156012.

The previous prime is 102234017. The next prime is 102234031. The reversal of 102234021 is 120432201.

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 102234021 - 2² = 102234017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102234031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17039001 + ... + 17039006.

It is an arithmetic number, because the mean of its divisors is an integer number (34078008).

Almost surely, 2^102234021 is an apocalyptic number.

It is an amenable number.

102234021 is a deficient number, since it is larger than the sum of its proper divisors (34078011).

102234021 is an equidigital number, since it uses as much as digits as its factorization.

102234021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34078010.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102234021 is about 10111.0840665084. The cubic root of 102234021 is about 467.5899276994.

Adding to 102234021 its reverse (120432201), we get a palindrome (222666222).

The spelling of 102234021 in words is "one hundred two million, two hundred thirty-four thousand, twenty-one".