102102120210004 has 6 divisors (see below), whose sum is σ = 178678710367514. Its totient is φ = 51051060105000.

The previous prime is 102102120209989. The next prime is 102102120210037. The reversal of 102102120210004 is 400012021201201.

It can be written as a sum of positive squares in only one way, i.e., 101084886593604 + 1017233616400 = 10054098^2 + 1008580^2 .

It is a super-2 number, since 2×102102120210004² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102102120210004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762765026247 + ... + 12762765026254.

Almost surely, 2^{102102120210004} is an apocalyptic number.

It is an amenable number.

102102120210004 is a deficient number, since it is larger than the sum of its proper divisors (76576590157510).

102102120210004 is a wasteful number, since it uses less digits than its factorization.

102102120210004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25525530052505 (or 25525530052503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102102120210004 its reverse (400012021201201), we get a palindrome (502114141411205).

The spelling of 102102120210004 in words is "one hundred two trillion, one hundred two billion, one hundred twenty million, two hundred ten thousand, four".