1020200220211 has 4 divisors (see below), whose sum is σ = 1020207597832. Its totient is φ = 1020192842592.

The previous prime is 1020200220163. The next prime is 1020200220251. The reversal of 1020200220211 is 1120220020201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1020200220211 - 2⁹ = 1020200219699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020200220191 and 1020200220200.

It is not an unprimeable number, because it can be changed into a prime (1020200220251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3477345 + ... + 3759298.

It is an arithmetic number, because the mean of its divisors is an integer number (255051899458).

Almost surely, 2^{1020200220211} is an apocalyptic number.

1020200220211 is a deficient number, since it is larger than the sum of its proper divisors (7377621).

1020200220211 is an equidigital number, since it uses as much as digits as its factorization.

1020200220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377620.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020200220211 its reverse (1120220020201), we get a palindrome (2140420240412).

The spelling of 1020200220211 in words is "one trillion, twenty billion, two hundred million, two hundred twenty thousand, two hundred eleven".