102000021002 has 16 divisors (see below), whose sum is σ = 175693816800. Its totient is φ = 43923453840.

The previous prime is 102000021001. The next prime is 102000021007. The reversal of 102000021002 is 200120000201.

It is not an unprimeable number, because it can be changed into a prime (102000021001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122009177 + ... + 122010012.

It is an arithmetic number, because the mean of its divisors is an integer number (10980863550).

Almost surely, 2^102000021002 is an apocalyptic number.

102000021002 is a deficient number, since it is larger than the sum of its proper divisors (73693795798).

102000021002 is a wasteful number, since it uses less digits than its factorization.

102000021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244019221.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 102000021002 its reverse (200120000201), we get a palindrome (302120021203).

The spelling of 102000021002 in words is "one hundred two billion, twenty-one thousand, two".