102120002122 has 16 divisors (see below), whose sum is σ = 153386259840. Its totient is φ = 50991283728.

The previous prime is 102120002081. The next prime is 102120002123. The reversal of 102120002122 is 221200021201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102120002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8420379 + ... + 8432497.

It is an arithmetic number, because the mean of its divisors is an integer number (9586641240).

Almost surely, 2^102120002122 is an apocalyptic number.

102120002122 is a deficient number, since it is larger than the sum of its proper divisors (51266257718).

102120002122 is a wasteful number, since it uses less digits than its factorization.

102120002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17445.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102120002122 its reverse (221200021201), we get a palindrome (323320023323).

The spelling of 102120002122 in words is "one hundred two billion, one hundred twenty million, two thousand, one hundred twenty-two".