20012100002010 has 48 divisors (see below), whose sum is σ = 52033565455560. Its totient is φ = 5336344056960.

The previous prime is 20012100001991. The next prime is 20012100002033. The reversal of 20012100002010 is 1020000121002.

It can be written as a sum of positive squares in 4 ways, for example, as 14424781212009 + 5587318790001 = 3797997^2 + 2363751^2 .

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 = 20012100001983 and 20012100002001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2256145 + ... + 6716724.

Almost surely, 2^{20012100002010} is an apocalyptic number.

20012100002010 is an abundant number, since it is smaller than the sum of its proper divisors (32021465453550).

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

20012100002010 is a wasteful number, since it uses less digits than its factorization.

20012100002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997663 (or 8997660 counting only the distinct ones).

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

Adding to 20012100002010 its reverse (1020000121002), we get a palindrome (21032100123012).

The spelling of 20012100002010 in words is "twenty trillion, twelve billion, one hundred million, two thousand, ten".