102030122 has 4 divisors (see below), whose sum is σ = 153045186. Its totient is φ = 51015060.

The previous prime is 102030121. The next prime is 102030143. The reversal of 102030122 is 221030201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221030201 = 7 ⋅31575743.

It can be written as a sum of positive squares in only one way, i.e., 78517321 + 23512801 = 8861^2 + 4849^2 .

It is not an unprimeable number, because it can be changed into a prime (102030121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25507529 + ... + 25507532.

Almost surely, 2^102030122 is an apocalyptic number.

102030122 is a deficient number, since it is larger than the sum of its proper divisors (51015064).

102030122 is an equidigital number, since it uses as much as digits as its factorization.

102030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51015063.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102030122 is about 10100.9960894953. The cubic root of 102030122 is about 467.2788617356.

Adding to 102030122 its reverse (221030201), we get a palindrome (323060323).

The spelling of 102030122 in words is "one hundred two million, thirty thousand, one hundred twenty-two".