20200122011011 has 6 divisors (see below), whose sum is σ = 21319242344412. Its totient is φ = 19136957694300.

The previous prime is 20200122011009. The next prime is 20200122011021. The reversal of 20200122011011 is 11011022100202.

It is not a de Polignac number, because 20200122011011 - 2¹ = 20200122011009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200122010982 and 20200122011000.

It is not an unprimeable number, because it can be changed into a prime (20200122011021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27978007965 + ... + 27978008686.

It is an arithmetic number, because the mean of its divisors is an integer number (3553207057402).

Almost surely, 2^{20200122011011} is an apocalyptic number.

20200122011011 is a deficient number, since it is larger than the sum of its proper divisors (1119120333401).

20200122011011 is an equidigital number, since it uses as much as digits as its factorization.

20200122011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55956016689 (or 55956016670 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20200122011011 its reverse (11011022100202), we get a palindrome (31211144111213).

The spelling of 20200122011011 in words is "twenty trillion, two hundred billion, one hundred twenty-two million, eleven thousand, eleven".