20101112201211 has 16 divisors (see below), whose sum is σ = 26957657236224. Its totient is φ = 13322661515424.

The previous prime is 20101112201201. The next prime is 20101112201237. The reversal of 20101112201211 is 11210221110102.

It is a happy number.

It is not a de Polignac number, because 20101112201211 - 2¹⁸ = 20101111939067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101112201201) 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, 10418610 + ... + 12196296.

It is an arithmetic number, because the mean of its divisors is an integer number (1684853577264).

Almost surely, 2^{20101112201211} is an apocalyptic number.

20101112201211 is a deficient number, since it is larger than the sum of its proper divisors (6856545035013).

20101112201211 is a wasteful number, since it uses less digits than its factorization.

20101112201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799650.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20101112201211 its reverse (11210221110102), we get a palindrome (31311333311313).

The spelling of 20101112201211 in words is "twenty trillion, one hundred one billion, one hundred twelve million, two hundred one thousand, two hundred eleven".