102666222225 has 180 divisors, whose sum is σ = 224538400944. Its totient is φ = 46229641920.

The previous prime is 102666222221. The next prime is 102666222227. The reversal of 102666222225 is 522222666201.

It is not a de Polignac number, because 102666222225 - 2² = 102666222221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102666222225.

It is not an unprimeable number, because it can be changed into a prime (102666222221) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 6640354 + ... + 6655796.

Almost surely, 2^102666222225 is an apocalyptic number.

102666222225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102666222225 is an abundant number, since it is smaller than the sum of its proper divisors (121872178719).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102666222225 is a wasteful number, since it uses less digits than its factorization.

102666222225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546 (or 15525 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 102666222225 its reverse (522222666201), we get a palindrome (624888888426).

The spelling of 102666222225 in words is "one hundred two billion, six hundred sixty-six million, two hundred twenty-two thousand, two hundred twenty-five".