20102200102111 has 4 divisors (see below), whose sum is σ = 20104507261072. Its totient is φ = 20099892943152.

The previous prime is 20102200102073. The next prime is 20102200102151. The reversal of 20102200102111 is 11120100220102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20102200102111 - 2⁴¹ = 17903176846559 is a prime.

It is a super-2 number, since 2×20102200102111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102200102091 and 20102200102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102200102151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153566411 + ... + 1153583836.

It is an arithmetic number, because the mean of its divisors is an integer number (5026126815268).

Almost surely, 2^{20102200102111} is an apocalyptic number.

20102200102111 is a deficient number, since it is larger than the sum of its proper divisors (2307158961).

20102200102111 is an equidigital number, since it uses as much as digits as its factorization.

20102200102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307158960.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20102200102111 its reverse (11120100220102), we get a palindrome (31222300322213).

The spelling of 20102200102111 in words is "twenty trillion, one hundred two billion, two hundred million, one hundred two thousand, one hundred eleven".