20711100111229 has 16 divisors (see below), whose sum is σ = 23794746048000. Its totient is φ = 17828562665520.

The previous prime is 20711100111217. The next prime is 20711100111257. The reversal of 20711100111229 is 92211100111702.

It is a cyclic number.

It is not a de Polignac number, because 20711100111229 - 2¹¹ = 20711100109181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20711100111197 and 20711100111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20711100111329) 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, 23874039 + ... + 24726340.

It is an arithmetic number, because the mean of its divisors is an integer number (1487171628000).

Almost surely, 2^{20711100111229} is an apocalyptic number.

It is an amenable number.

20711100111229 is a deficient number, since it is larger than the sum of its proper divisors (3083645936771).

20711100111229 is a wasteful number, since it uses less digits than its factorization.

20711100111229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48602448.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 20711100111229 in words is "twenty trillion, seven hundred eleven billion, one hundred million, one hundred eleven thousand, two hundred twenty-nine".