102102200444 has 12 divisors (see below), whose sum is σ = 178817478000. Its totient is φ = 51011492448.

The previous prime is 102102200407. The next prime is 102102200449. The reversal of 102102200444 is 444002201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102200449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9896144 + ... + 9906455.

It is an arithmetic number, because the mean of its divisors is an integer number (14901456500).

Almost surely, 2^102102200444 is an apocalyptic number.

It is an amenable number.

102102200444 is a deficient number, since it is larger than the sum of its proper divisors (76715277556).

102102200444 is a wasteful number, since it uses less digits than its factorization.

102102200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19803892 (or 19803890 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102102200444 its reverse (444002201201), we get a palindrome (546104401645).

The spelling of 102102200444 in words is "one hundred two billion, one hundred two million, two hundred thousand, four hundred forty-four".