10021010102 has 4 divisors (see below), whose sum is σ = 15031515156. Its totient is φ = 5010505050.

The previous prime is 10021010081. The next prime is 10021010119. The reversal of 10021010102 is 20101012001.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10021010102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505252524 + ... + 2505252527.

It is an arithmetic number, because the mean of its divisors is an integer number (3757878789).

Almost surely, 2^10021010102 is an apocalyptic number.

10021010102 is a deficient number, since it is larger than the sum of its proper divisors (5010505054).

10021010102 is an equidigital number, since it uses as much as digits as its factorization.

10021010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010505053.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10021010102 its reverse (20101012001), we get a palindrome (30122022103).

The spelling of 10021010102 in words is "ten billion, twenty-one million, ten thousand, one hundred two".