102220202212 has 12 divisors (see below), whose sum is σ = 178888465980. Its totient is φ = 51109211936.

The previous prime is 102220202209. The next prime is 102220202257. The reversal of 102220202212 is 212202022201.

It can be written as a sum of positive squares in 2 ways, for example, as 78364164096 + 23856038116 = 279936^2 + 154454^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82938 + ... + 459694.

It is an arithmetic number, because the mean of its divisors is an integer number (14907372165).

Almost surely, 2^102220202212 is an apocalyptic number.

It is an amenable number.

102220202212 is a deficient number, since it is larger than the sum of its proper divisors (76668263768).

102220202212 is a wasteful number, since it uses less digits than its factorization.

102220202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444590 (or 444588 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 102220202212 its reverse (212202022201), we get a palindrome (314422224413).

The spelling of 102220202212 in words is "one hundred two billion, two hundred twenty million, two hundred two thousand, two hundred twelve".