20110211202111 has 8 divisors (see below), whose sum is σ = 26814764496384. Its totient is φ = 13406232687960.

The previous prime is 20110211202073. The next prime is 20110211202113. The reversal of 20110211202111 is 11120211201102.

It is a happy number.

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

It is not a de Polignac number, because 20110211202111 - 2¹⁵ = 20110211169343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110211202113) 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, 143613385 + ... + 143753346.

It is an arithmetic number, because the mean of its divisors is an integer number (3351845562048).

Almost surely, 2^{20110211202111} is an apocalyptic number.

20110211202111 is a deficient number, since it is larger than the sum of its proper divisors (6704553294273).

20110211202111 is a wasteful number, since it uses less digits than its factorization.

20110211202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287390061.

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

Adding to 20110211202111 its reverse (11120211201102), we get a palindrome (31230422403213).

The spelling of 20110211202111 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, two hundred two thousand, one hundred eleven".