2020012211111 has 4 divisors (see below), whose sum is σ = 2020018518000. Its totient is φ = 2020005904224.

The previous prime is 2020012211081. The next prime is 2020012211137. The reversal of 2020012211111 is 1111122100202.

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 2020012211111 - 2¹⁰ = 2020012210087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020012811111) 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, 2645771 + ... + 3322668.

It is an arithmetic number, because the mean of its divisors is an integer number (505004629500).

Almost surely, 2^{2020012211111} is an apocalyptic number.

2020012211111 is a deficient number, since it is larger than the sum of its proper divisors (6306889).

2020012211111 is an equidigital number, since it uses as much as digits as its factorization.

2020012211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306888.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2020012211111 its reverse (1111122100202), we get a palindrome (3131134311313).

The spelling of 2020012211111 in words is "two trillion, twenty billion, twelve million, two hundred eleven thousand, one hundred eleven".