1020202020211 has 64 divisors (see below), whose sum is σ = 1215386726400. Its totient is φ = 846395222400.

The previous prime is 1020202020209. The next prime is 1020202020247. The reversal of 1020202020211 is 1120202020201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020202020211 - 2¹ = 1020202020209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020202020191 and 1020202020200.

It is not an unprimeable number, because it can be changed into a prime (1020202020511) 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 63 ways as a sum of consecutive naturals, for example, 196606005 + ... + 196611193.

It is an arithmetic number, because the mean of its divisors is an integer number (18990417600).

Almost surely, 2^{1020202020211} is an apocalyptic number.

1020202020211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1020202020211 is a deficient number, since it is larger than the sum of its proper divisors (195184706189).

1020202020211 is a wasteful number, since it uses less digits than its factorization.

1020202020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560.

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

Adding to 1020202020211 its reverse (1120202020201), we get a palindrome (2140404040412).

The spelling of 1020202020211 in words is "one trillion, twenty billion, two hundred two million, twenty thousand, two hundred eleven".