20012110120210 has 64 divisors (see below), whose sum is σ = 39233266984800. Its totient is φ = 7305190244352.

The previous prime is 20012110120193. The next prime is 20012110120213. The reversal of 20012110120210 is 1202101121002.

It can be written as a sum of positive squares in 16 ways, for example, as 3168054689409 + 16844055430801 = 1779903^2 + 4104151^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (20012110120213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100988106 + ... + 101186074.

Almost surely, 2^{20012110120210} is an apocalyptic number.

20012110120210 is a deficient number, since it is larger than the sum of its proper divisors (19221156864590).

20012110120210 is a wasteful number, since it uses less digits than its factorization.

20012110120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206815.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20012110120210 its reverse (1202101121002), we get a palindrome (21214211241212).

The spelling of 20012110120210 in words is "twenty trillion, twelve billion, one hundred ten million, one hundred twenty thousand, two hundred ten".