20120110221211 has 64 divisors (see below), whose sum is σ = 27556064686080. Its totient is φ = 14184511810560.

The previous prime is 20120110221209. The next prime is 20120110221221. The reversal of 20120110221211 is 11212201102102.

It is not a de Polignac number, because 20120110221211 - 2¹ = 20120110221209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120110221221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9905245 + ... + 11762401.

It is an arithmetic number, because the mean of its divisors is an integer number (430563510720).

Almost surely, 2^{20120110221211} is an apocalyptic number.

20120110221211 is a deficient number, since it is larger than the sum of its proper divisors (7435954464869).

20120110221211 is a wasteful number, since it uses less digits than its factorization.

20120110221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857404.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20120110221211 its reverse (11212201102102), we get a palindrome (31332311323313).

The spelling of 20120110221211 in words is "twenty trillion, one hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, two hundred eleven".