102021010102 has 32 divisors (see below), whose sum is σ = 167587223040. Its totient is φ = 46194714720.

The previous prime is 102021010057. The next prime is 102021010103. The reversal of 102021010102 is 201010120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021010103) 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 in 15 ways as a sum of consecutive naturals, for example, 6235849 + ... + 6252187.

It is an arithmetic number, because the mean of its divisors is an integer number (5237100720).

Almost surely, 2^102021010102 is an apocalyptic number.

102021010102 is a deficient number, since it is larger than the sum of its proper divisors (65566212938).

102021010102 is a wasteful number, since it uses less digits than its factorization.

102021010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17428.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102021010102 its reverse (201010120201), we get a palindrome (303031130303).

The spelling of 102021010102 in words is "one hundred two billion, twenty-one million, ten thousand, one hundred two".