2020021111011 has 64 divisors (see below), whose sum is σ = 2759026406400. Its totient is φ = 1314450309120.

The previous prime is 2020021110983. The next prime is 2020021111127. The reversal of 2020021111011 is 1101111200202.

It is not a de Polignac number, because 2020021111011 - 2²⁵ = 2019987556579 is a prime.

It is a super-2 number, since 2×2020021111011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2020021111411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3372322090 + ... + 3372322688.

It is an arithmetic number, because the mean of its divisors is an integer number (43109787600).

Almost surely, 2^{2020021111011} is an apocalyptic number.

2020021111011 is a deficient number, since it is larger than the sum of its proper divisors (739005295389).

2020021111011 is a wasteful number, since it uses less digits than its factorization.

2020021111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2020021111011 its reverse (1101111200202), we get a palindrome (3121132311213).

The spelling of 2020021111011 in words is "two trillion, twenty billion, twenty-one million, one hundred eleven thousand, eleven".