20110212222111 has 64 divisors (see below), whose sum is σ = 32970483233280. Its totient is φ = 12012325920000.

The previous prime is 20110212222109. The next prime is 20110212222119. The reversal of 20110212222111 is 11122221201102.

20110212222111 is a `hidden beast` number, since 201 + 10 + 21 + 222 + 211 + 1 = 666.

It is not a de Polignac number, because 20110212222111 - 2¹ = 20110212222109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110212222119) 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, 29605636 + ... + 30277286.

It is an arithmetic number, because the mean of its divisors is an integer number (515163800520).

Almost surely, 2^{20110212222111} is an apocalyptic number.

20110212222111 is a deficient number, since it is larger than the sum of its proper divisors (12860271011169).

20110212222111 is a wasteful number, since it uses less digits than its factorization.

20110212222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673125 (or 673119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20110212222111 its reverse (11122221201102), we get a palindrome (31232433423213).

The spelling of 20110212222111 in words is "twenty trillion, one hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eleven".