102111224 has 8 divisors (see below), whose sum is σ = 191458560. Its totient is φ = 51055608.

The previous prime is 102111203. The next prime is 102111239. The reversal of 102111224 is 422111201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 102111199 and 102111208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6381944 + ... + 6381959.

It is an arithmetic number, because the mean of its divisors is an integer number (23932320).

Almost surely, 2^102111224 is an apocalyptic number.

It is an amenable number.

102111224 is a deficient number, since it is larger than the sum of its proper divisors (89347336).

102111224 is a wasteful number, since it uses less digits than its factorization.

102111224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12763909 (or 12763905 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 102111224 is about 10105.0098466058. The cubic root of 102111224 is about 467.4026396051.

Adding to 102111224 its reverse (422111201), we get a palindrome (524222425).

The spelling of 102111224 in words is "one hundred two million, one hundred eleven thousand, two hundred twenty-four".