20011210113210 has 32 divisors (see below), whose sum is σ = 48268245513600. Its totient is φ = 5309507003328.

The previous prime is 20011210113199. The next prime is 20011210113217. The reversal of 20011210113210 is 1231101211002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20011210113210.

It is not an unprimeable number, because it can be changed into a prime (20011210113217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675974777 + ... + 1675986716.

It is an arithmetic number, because the mean of its divisors is an integer number (1508382672300).

Almost surely, 2^{20011210113210} is an apocalyptic number.

20011210113210 is an abundant number, since it is smaller than the sum of its proper divisors (28257035400390).

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

20011210113210 is a wasteful number, since it uses less digits than its factorization.

20011210113210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351961702.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20011210113210 its reverse (1231101211002), we get a palindrome (21242311324212).

The spelling of 20011210113210 in words is "twenty trillion, eleven billion, two hundred ten million, one hundred thirteen thousand, two hundred ten".