20112001210211 has 4 divisors (see below), whose sum is σ = 20579722168632. Its totient is φ = 19644280251792.

The previous prime is 20112001210201. The next prime is 20112001210229. The reversal of 20112001210211 is 11201210021102.

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 20112001210211 - 2²² = 20111997015907 is a prime.

It is a super-2 number, since 2×20112001210211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112001210201) 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 3 ways as a sum of consecutive naturals, for example, 233860479146 + ... + 233860479231.

It is an arithmetic number, because the mean of its divisors is an integer number (5144930542158).

Almost surely, 2^{20112001210211} is an apocalyptic number.

20112001210211 is a deficient number, since it is larger than the sum of its proper divisors (467720958421).

20112001210211 is an equidigital number, since it uses as much as digits as its factorization.

20112001210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467720958420.

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

Adding to 20112001210211 its reverse (11201210021102), we get a palindrome (31313211231313).

The spelling of 20112001210211 in words is "twenty trillion, one hundred twelve billion, one million, two hundred ten thousand, two hundred eleven".