20120102002 has 96 divisors (see below), whose sum is σ = 41437992960. Its totient is φ = 7112813760.

The previous prime is 20120101999. The next prime is 20120102011. The reversal of 20120102002 is 20020102102.

It is a self number, because there is not a number n which added to its sum of digits gives 20120102002.

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, 1528983 + ... + 1542085.

It is an arithmetic number, because the mean of its divisors is an integer number (431645760).

Almost surely, 2^20120102002 is an apocalyptic number.

20120102002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20120102002 is an abundant number, since it is smaller than the sum of its proper divisors (21317890958).

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

20120102002 is a wasteful number, since it uses less digits than its factorization.

20120102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208 (or 13195 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20120102002 its reverse (20020102102), we get a palindrome (40140204104).

The spelling of 20120102002 in words is "twenty billion, one hundred twenty million, one hundred two thousand, two".