102020002244 has 6 divisors (see below), whose sum is σ = 178535003934. Its totient is φ = 51010001120.

The previous prime is 102020002243. The next prime is 102020002247. The reversal of 102020002244 is 442200020201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 99351040000 + 2668962244 = 315200^2 + 51662^2 .

It is not an unprimeable number, because it can be changed into a prime (102020002243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752500277 + ... + 12752500284.

It is an arithmetic number, because the mean of its divisors is an integer number (29755833989).

Almost surely, 2^102020002244 is an apocalyptic number.

It is an amenable number.

102020002244 is a deficient number, since it is larger than the sum of its proper divisors (76515001690).

102020002244 is a wasteful number, since it uses less digits than its factorization.

102020002244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505000565 (or 25505000563 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 102020002244 its reverse (442200020201), we get a palindrome (544220022445).

The spelling of 102020002244 in words is "one hundred two billion, twenty million, two thousand, two hundred forty-four".