102211227 has 20 divisors (see below), whose sum is σ = 154628320. Its totient is φ = 67274064.

The previous prime is 102211217. The next prime is 102211231. The reversal of 102211227 is 722112201.

It is a happy number.

It is not a de Polignac number, because 102211227 - 2⁶ = 102211163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102211217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1588 + ... + 14385.

It is an arithmetic number, because the mean of its divisors is an integer number (7731416).

Almost surely, 2^102211227 is an apocalyptic number.

102211227 is a deficient number, since it is larger than the sum of its proper divisors (52417093).

102211227 is an equidigital number, since it uses as much as digits as its factorization.

102211227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16064 (or 16055 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 102211227 is about 10109.9568248336. The cubic root of 102211227 is about 467.5551739814. Note that the first 3 decimals are identical.

Adding to 102211227 its reverse (722112201), we get a palindrome (824323428).

The spelling of 102211227 in words is "one hundred two million, two hundred eleven thousand, two hundred twenty-seven".