20102000022111 has 64 divisors (see below), whose sum is σ = 31045081890816. Its totient is φ = 11333087568000.

The previous prime is 20102000022067. The next prime is 20102000022119. The reversal of 20102000022111 is 11122000020102.

It is not a de Polignac number, because 20102000022111 - 2¹³ = 20102000013919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102000022119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 304741345 + ... + 304807301.

It is an arithmetic number, because the mean of its divisors is an integer number (485079404544).

Almost surely, 2^{20102000022111} is an apocalyptic number.

20102000022111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20102000022111 is a deficient number, since it is larger than the sum of its proper divisors (10943081868705).

20102000022111 is a wasteful number, since it uses less digits than its factorization.

20102000022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66772.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20102000022111 its reverse (11122000020102), we get a palindrome (31224000042213).

The spelling of 20102000022111 in words is "twenty trillion, one hundred two billion, twenty-two thousand, one hundred eleven".