102220112 has 40 divisors (see below), whose sum is σ = 203653632. Its totient is φ = 49680000.

The previous prime is 102220087. The next prime is 102220123. The reversal of 102220112 is 211022201.

It is a happy number.

It is a super-3 number, since 3×102220112³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102220093 and 102220102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135737 + ... + 136487.

Almost surely, 2^102220112 is an apocalyptic number.

It is an amenable number.

102220112 is a deficient number, since it is larger than the sum of its proper divisors (101433520).

102220112 is a wasteful number, since it uses less digits than its factorization.

102220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 102220112 is about 10110.3962335806. The cubic root of 102220112 is about 467.5687214408.

Adding to 102220112 its reverse (211022201), we get a palindrome (313242313).

The spelling of 102220112 in words is "one hundred two million, two hundred twenty thousand, one hundred twelve".