20100220000213 has 4 divisors (see below), whose sum is σ = 20107853964108. Its totient is φ = 20092586036320.

The previous prime is 20100220000183. The next prime is 20100220000241. The reversal of 20100220000213 is 31200002200102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1054694082289 + 19045525917924 = 1026983^2 + 4364118^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100220000213 - 2²¹ = 20100217903061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100220000193 and 20100220000202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100220000243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3816977998 + ... + 3816983263.

It is an arithmetic number, because the mean of its divisors is an integer number (5026963491027).

Almost surely, 2^{20100220000213} is an apocalyptic number.

It is an amenable number.

20100220000213 is a deficient number, since it is larger than the sum of its proper divisors (7633963895).

20100220000213 is an equidigital number, since it uses as much as digits as its factorization.

20100220000213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7633963894.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20100220000213 its reverse (31200002200102), we get a palindrome (51300222200315).

The spelling of 20100220000213 in words is "twenty trillion, one hundred billion, two hundred twenty million, two hundred thirteen", and thus it is an aban number.