20121110011211 has 8 divisors (see below), whose sum is σ = 21950341506048. Its totient is φ = 18291885129000.

The previous prime is 20121110011157. The next prime is 20121110011267. The reversal of 20121110011211 is 11211001112102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20121110011211 - 2⁶ = 20121110011147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121110011291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6425726 + ... + 9029516.

It is an arithmetic number, because the mean of its divisors is an integer number (2743792688256).

Almost surely, 2^{20121110011211} is an apocalyptic number.

20121110011211 is a deficient number, since it is larger than the sum of its proper divisors (1829231494837).

20121110011211 is a wasteful number, since it uses less digits than its factorization.

20121110011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306313.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20121110011211 its reverse (11211001112102), we get a palindrome (31332111123313).

The spelling of 20121110011211 in words is "twenty trillion, one hundred twenty-one billion, one hundred ten million, eleven thousand, two hundred eleven".