20202112120211 has 16 divisors (see below), whose sum is σ = 24525882855936. Its totient is φ = 16244415858816.

The previous prime is 20202112120193. The next prime is 20202112120213. The reversal of 20202112120211 is 11202121120202.

It is not a de Polignac number, because 20202112120211 - 2¹⁰ = 20202112119187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20202112120211.

It is not an unprimeable number, because it can be changed into a prime (20202112120213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276454751 + ... + 276527816.

It is an arithmetic number, because the mean of its divisors is an integer number (1532867678496).

Almost surely, 2^{20202112120211} is an apocalyptic number.

20202112120211 is a deficient number, since it is larger than the sum of its proper divisors (4323770735725).

20202112120211 is a wasteful number, since it uses less digits than its factorization.

20202112120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552982898.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20202112120211 its reverse (11202121120202), we get a palindrome (31404233240413).

The spelling of 20202112120211 in words is "twenty trillion, two hundred two billion, one hundred twelve million, one hundred twenty thousand, two hundred eleven".