1020202120211 has 16 divisors (see below), whose sum is σ = 1039002703200. Its totient is φ = 1001578894848.

The previous prime is 1020202120193. The next prime is 1020202120213. The reversal of 1020202120211 is 1120212020201.

It is a cyclic number.

It is not a de Polignac number, because 1020202120211 - 2¹⁰ = 1020202119187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020202120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45056585 + ... + 45079221.

It is an arithmetic number, because the mean of its divisors is an integer number (64937668950).

Almost surely, 2^{1020202120211} is an apocalyptic number.

1020202120211 is a deficient number, since it is larger than the sum of its proper divisors (18800582989).

1020202120211 is a wasteful number, since it uses less digits than its factorization.

1020202120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020202120211 its reverse (1120212020201), we get a palindrome (2140414140412).

The spelling of 1020202120211 in words is "one trillion, twenty billion, two hundred two million, one hundred twenty thousand, two hundred eleven".