10020012102 has 96 divisors (see below), whose sum is σ = 23207184000. Its totient is φ = 3115532160.

The previous prime is 10020012089. The next prime is 10020012127. The reversal of 10020012102 is 20121002001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6226674 + ... + 6228282.

It is an arithmetic number, because the mean of its divisors is an integer number (241741500).

Almost surely, 2^10020012102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020012102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11603592000).

10020012102 is an abundant number, since it is smaller than the sum of its proper divisors (13187171898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10020012102 is a wasteful number, since it uses less digits than its factorization.

10020012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10020012102 its reverse (20121002001), we get a palindrome (30141014103).

The spelling of 10020012102 in words is "ten billion, twenty million, twelve thousand, one hundred two".