102102012012122 has 4 divisors (see below), whose sum is σ = 153153018018186. Its totient is φ = 51051006006060.

The previous prime is 102102012012083. The next prime is 102102012012239. The reversal of 102102012012122 is 221210210201201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96381166046881 + 5720845965241 = 9817391^2 + 2391829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102102012012122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525503003029 + ... + 25525503003032.

Almost surely, 2^{102102012012122} is an apocalyptic number.

102102012012122 is a deficient number, since it is larger than the sum of its proper divisors (51051006006064).

102102012012122 is an equidigital number, since it uses as much as digits as its factorization.

102102012012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051006006063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102102012012122 its reverse (221210210201201), we get a palindrome (323312222213323).

The spelling of 102102012012122 in words is "one hundred two trillion, one hundred two billion, twelve million, twelve thousand, one hundred twenty-two".