102220331 has 8 divisors (see below), whose sum is σ = 108205680. Its totient is φ = 96399072.

The previous prime is 102220297. The next prime is 102220343. The reversal of 102220331 is 133022201.

It is a happy number.

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 102220331 - 2⁶ = 102220267 is a prime.

It is a super-2 number, since 2×102220331² = 20897992139499122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102220351) 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 7 ways as a sum of consecutive naturals, for example, 39740 + ... + 42233.

It is an arithmetic number, because the mean of its divisors is an integer number (13525710).

Almost surely, 2^102220331 is an apocalyptic number.

102220331 is a deficient number, since it is larger than the sum of its proper divisors (5985349).

102220331 is an equidigital number, since it uses as much as digits as its factorization.

102220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82045.

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

The square root of 102220331 is about 10110.4070640108. The cubic root of 102220331 is about 467.5690553525.

Adding to 102220331 its reverse (133022201), we get a palindrome (235242532).

The spelling of 102220331 in words is "one hundred two million, two hundred twenty thousand, three hundred thirty-one".