10020102012 has 36 divisors (see below), whose sum is σ = 25946365536. Its totient is φ = 3258569280.

The previous prime is 10020101989. The next prime is 10020102017. The reversal of 10020102012 is 21020102001.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 10020101985 and 10020102003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020102017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3392868 + ... + 3395819.

It is an arithmetic number, because the mean of its divisors is an integer number (720732376).

Almost surely, 2^10020102012 is an apocalyptic number.

10020102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10020102012 is an abundant number, since it is smaller than the sum of its proper divisors (15926263524).

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

10020102012 is a wasteful number, since it uses less digits than its factorization.

10020102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788738 (or 6788733 counting only the distinct ones).

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

Adding to 10020102012 its reverse (21020102001), we get a palindrome (31040204013).

The spelling of 10020102012 in words is "ten billion, twenty million, one hundred two thousand, twelve".