102122115 has 16 divisors (see below), whose sum is σ = 165465600. Its totient is φ = 53775072.

The previous prime is 102122099. The next prime is 102122123. The reversal of 102122115 is 511221201.

It is not a de Polignac number, because 102122115 - 2⁴ = 102122099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 102122094 and 102122103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41905 + ... + 44274.

It is an arithmetic number, because the mean of its divisors is an integer number (10341600).

Almost surely, 2^102122115 is an apocalyptic number.

102122115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102122115 is a deficient number, since it is larger than the sum of its proper divisors (63343485).

102122115 is an equidigital number, since it uses as much as digits as its factorization.

102122115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86266.

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

The square root of 102122115 is about 10105.5487233500. The cubic root of 102122115 is about 467.4192564567.

Adding to 102122115 its reverse (511221201), we get a palindrome (613343316).

The spelling of 102122115 in words is "one hundred two million, one hundred twenty-two thousand, one hundred fifteen".