20110211220011 has 16 divisors (see below), whose sum is σ = 22092842400000. Its totient is φ = 18153686628000.

The previous prime is 20110211219983. The next prime is 20110211220049. The reversal of 20110211220011 is 11002211201102.

It is not a de Polignac number, because 20110211220011 - 2²² = 20110207025707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110211220511) 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, 8113040 + ... + 10297661.

It is an arithmetic number, because the mean of its divisors is an integer number (1380802650000).

Almost surely, 2^{20110211220011} is an apocalyptic number.

20110211220011 is a deficient number, since it is larger than the sum of its proper divisors (1982631179989).

20110211220011 is a wasteful number, since it uses less digits than its factorization.

20110211220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18411410.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20110211220011 its reverse (11002211201102), we get a palindrome (31112422421113).

The spelling of 20110211220011 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, two hundred twenty thousand, eleven".