102202111208 has 8 divisors (see below), whose sum is σ = 191628958530. Its totient is φ = 51101055600.

The previous prime is 102202111201. The next prime is 102202111229. The reversal of 102202111208 is 802111202201.

It can be written as a sum of positive squares in only one way, i.e., 88174551364 + 14027559844 = 296942^2 + 118438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 102202111208.

It is not an unprimeable number, because it can be changed into a prime (102202111201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6387631943 + ... + 6387631958.

Almost surely, 2^102202111208 is an apocalyptic number.

It is an amenable number.

102202111208 is a deficient number, since it is larger than the sum of its proper divisors (89426847322).

102202111208 is a wasteful number, since it uses less digits than its factorization.

102202111208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775263907 (or 12775263903 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102202111208 its reverse (802111202201), we get a palindrome (904313313409).

The spelling of 102202111208 in words is "one hundred two billion, two hundred two million, one hundred eleven thousand, two hundred eight".