102215122 has 16 divisors (see below), whose sum is σ = 158515200. Its totient is φ = 49381920.

The previous prime is 102215119. The next prime is 102215129. The reversal of 102215122 is 221512201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102215096 and 102215105.

It is not an unprimeable number, because it can be changed into a prime (102215129) 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, 78654 + ... + 79942.

It is an arithmetic number, because the mean of its divisors is an integer number (9907200).

Almost surely, 2^102215122 is an apocalyptic number.

102215122 is a deficient number, since it is larger than the sum of its proper divisors (56300078).

102215122 is a wasteful number, since it uses less digits than its factorization.

102215122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 102215122 is about 10110.1494548795. The cubic root of 102215122 is about 467.5611130037.

Adding to 102215122 its reverse (221512201), we get a palindrome (323727323).

The spelling of 102215122 in words is "one hundred two million, two hundred fifteen thousand, one hundred twenty-two".