102225311 has 4 divisors (see below), whose sum is σ = 103374000. Its totient is φ = 101076624.

The previous prime is 102225269. The next prime is 102225313. The reversal of 102225311 is 113522201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102225311 - 2⁶ = 102225247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102225311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102225313) 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, 574211 + ... + 574388.

It is an arithmetic number, because the mean of its divisors is an integer number (25843500).

Almost surely, 2^102225311 is an apocalyptic number.

102225311 is a deficient number, since it is larger than the sum of its proper divisors (1148689).

102225311 is an equidigital number, since it uses as much as digits as its factorization.

102225311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148688.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102225311 is about 10110.6533418964. The cubic root of 102225311 is about 467.5766482845.

Adding to 102225311 its reverse (113522201), we get a palindrome (215747512).

The spelling of 102225311 in words is "one hundred two million, two hundred twenty-five thousand, three hundred eleven".