102215112 has 32 divisors (see below), whose sum is σ = 255940800. Its totient is φ = 34017984.

The previous prime is 102215063. The next prime is 102215119. The reversal of 102215112 is 211512201.

It is a junction number, because it is equal to n+sod(n) for n = 102215091 and 102215100.

It is not an unprimeable number, because it can be changed into a prime (102215119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14013 + ... + 20019.

It is an arithmetic number, because the mean of its divisors is an integer number (7998150).

Almost surely, 2^102215112 is an apocalyptic number.

102215112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102215112 is an abundant number, since it is smaller than the sum of its proper divisors (153725688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102215112 is a wasteful number, since it uses less digits than its factorization.

102215112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725 (or 6721 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 102215112 is about 10110.1489603269. The cubic root of 102215112 is about 467.5610977560.

Adding to 102215112 its reverse (211512201), we get a palindrome (313727313).

It can be divided in two parts, 10 and 2215112, that added together give a palindrome (2215122).

The spelling of 102215112 in words is "one hundred two million, two hundred fifteen thousand, one hundred twelve".