102011227 has 2 divisors, whose sum is σ = 102011228. Its totient is φ = 102011226.

The previous prime is 102011219. The next prime is 102011243. The reversal of 102011227 is 722110201.

It is an a-pointer prime, because the next prime (102011243) can be obtained adding 102011227 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102011227 - 2³ = 102011219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102011227.

It is not a weakly prime, because it can be changed into another prime (102011207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005613 + 51005614.

It is an arithmetic number, because the mean of its divisors is an integer number (51005614).

Almost surely, 2^102011227 is an apocalyptic number.

102011227 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011227 is an equidigital number, since it uses as much as digits as its factorization.

102011227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 102011227 is about 10100.0607423916. The cubic root of 102011227 is about 467.2500147669.

Adding to 102011227 its reverse (722110201), we get a palindrome (824121428).

The spelling of 102011227 in words is "one hundred two million, eleven thousand, two hundred twenty-seven".