102221052004 has 6 divisors (see below), whose sum is σ = 178886841014. Its totient is φ = 51110526000.

The previous prime is 102221051963. The next prime is 102221052013. The reversal of 102221052004 is 400250122201.

It can be written as a sum of positive squares in only one way, i.e., 95789012004 + 6432040000 = 309498^2 + 80200^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777631497 + ... + 12777631504.

Almost surely, 2^102221052004 is an apocalyptic number.

It is an amenable number.

102221052004 is a deficient number, since it is larger than the sum of its proper divisors (76665789010).

102221052004 is a wasteful number, since it uses less digits than its factorization.

102221052004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25555263005 (or 25555263003 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 102221052004 its reverse (400250122201), we get a palindrome (502471174205).

The spelling of 102221052004 in words is "one hundred two billion, two hundred twenty-one million, fifty-two thousand, four".