20202111102011 has 16 divisors (see below), whose sum is σ = 21999478500000. Its totient is φ = 18478202109696.

The previous prime is 20202111102001. The next prime is 20202111102031. The reversal of 20202111102011 is 11020111120202.

It is a cyclic number.

It is not a de Polignac number, because 20202111102011 - 2³⁰ = 20201037360187 is a prime.

It is a super-2 number, since 2×20202111102011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202111102001) 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, 14629055 + ... + 15950343.

It is an arithmetic number, because the mean of its divisors is an integer number (1374967406250).

Almost surely, 2^{20202111102011} is an apocalyptic number.

20202111102011 is a deficient number, since it is larger than the sum of its proper divisors (1797367397989).

20202111102011 is a wasteful number, since it uses less digits than its factorization.

20202111102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349086.

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

Adding to 20202111102011 its reverse (11020111120202), we get a palindrome (31222222222213).

The spelling of 20202111102011 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred two thousand, eleven".