102220311 has 8 divisors (see below), whose sum is σ = 136341360. Its totient is φ = 68123072.

The previous prime is 102220297. The next prime is 102220343. The reversal of 102220311 is 113022201.

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 102220311 - 2¹³ = 102212119 is a prime.

It is a congruent 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, 10825 + ... + 17933.

It is an arithmetic number, because the mean of its divisors is an integer number (17042670).

Almost surely, 2^102220311 is an apocalyptic number.

102220311 is a deficient number, since it is larger than the sum of its proper divisors (34121049).

102220311 is an equidigital number, since it uses as much as digits as its factorization.

102220311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11905.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102220311 is about 10110.4060749309. The cubic root of 102220311 is about 467.5690248583.

Adding to 102220311 its reverse (113022201), we get a palindrome (215242512).

The spelling of 102220311 in words is "one hundred two million, two hundred twenty thousand, three hundred eleven".