102102212025 has 72 divisors (see below), whose sum is σ = 199627178400. Its totient is φ = 49472928000.

The previous prime is 102102212011. The next prime is 102102212059. The reversal of 102102212025 is 520212201201.

It is not a de Polignac number, because 102102212025 - 2⁵ = 102102211993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102102211989 and 102102212007.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4192885 + ... + 4217165.

It is an arithmetic number, because the mean of its divisors is an integer number (2772599700).

Almost surely, 2^102102212025 is an apocalyptic number.

102102212025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102102212025 is a deficient number, since it is larger than the sum of its proper divisors (97524966375).

102102212025 is a wasteful number, since it uses less digits than its factorization.

102102212025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26007 (or 25999 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 102102212025 its reverse (520212201201), we get a palindrome (622314413226).

The spelling of 102102212025 in words is "one hundred two billion, one hundred two million, two hundred twelve thousand, twenty-five".