102327221 has 4 divisors (see below), whose sum is σ = 102382092. Its totient is φ = 102272352.

The previous prime is 102327209. The next prime is 102327223. The reversal of 102327221 is 122723201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71402500 + 30924721 = 8450^2 + 5561^2 .

It is a cyclic number.

It is not a de Polignac number, because 102327221 - 2¹⁴ = 102310837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102327193 and 102327202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102327223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24536 + ... + 28401.

It is an arithmetic number, because the mean of its divisors is an integer number (25595523).

Almost surely, 2^102327221 is an apocalyptic number.

It is an amenable number.

102327221 is a deficient number, since it is larger than the sum of its proper divisors (54871).

102327221 is an equidigital number, since it uses as much as digits as its factorization.

102327221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54870.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 102327221 is about 10115.6918201377. The cubic root of 102327221 is about 467.7319748207.

The spelling of 102327221 in words is "one hundred two million, three hundred twenty-seven thousand, two hundred twenty-one".