102122210 has 16 divisors (see below), whose sum is σ = 183957696. Its totient is φ = 40818288.

The previous prime is 102122203. The next prime is 102122219. The reversal of 102122210 is 12221201.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102122191 and 102122200.

It is not an unprimeable number, because it can be changed into a prime (102122219) by changing a digit.

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, 14267 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (11497356).

Almost surely, 2^102122210 is an apocalyptic number.

102122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102122210 is a deficient number, since it is larger than the sum of its proper divisors (81835486).

102122210 is a wasteful number, since it uses less digits than its factorization.

102122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657.

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

The square root of 102122210 is about 10105.5534237369. The cubic root of 102122210 is about 467.4194013970.

Adding to 102122210 its reverse (12221201), we get a palindrome (114343411).

The spelling of 102122210 in words is "one hundred two million, one hundred twenty-two thousand, two hundred ten".