20112101200111 has 8 divisors (see below), whose sum is σ = 20446110704448. Its totient is φ = 19778230500000.

The previous prime is 20112101200057. The next prime is 20112101200207. The reversal of 20112101200111 is 11100210121102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112101200111 is a prime.

It is a super-2 number, since 2×20112101200111² (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 = 20112101200091 and 20112101200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112101210111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34408840 + ... + 34988461.

It is an arithmetic number, because the mean of its divisors is an integer number (2555763838056).

Almost surely, 2^{20112101200111} is an apocalyptic number.

20112101200111 is a deficient number, since it is larger than the sum of its proper divisors (334009504337).

20112101200111 is an equidigital number, since it uses as much as digits as its factorization.

20112101200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69402113.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20112101200111 its reverse (11100210121102), we get a palindrome (31212311321213).

The spelling of 20112101200111 in words is "twenty trillion, one hundred twelve billion, one hundred one million, two hundred thousand, one hundred eleven".