2120112001111 has 12 divisors (see below), whose sum is σ = 2386783069048. Its totient is φ = 1871938349424.

The previous prime is 2120112001093. The next prime is 2120112001121. The reversal of 2120112001111 is 1111002110212.

It is a happy number.

It is not a de Polignac number, because 2120112001111 - 2³¹ = 2117964517463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120112001091 and 2120112001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120112001121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154138245 + ... + 154151998.

Almost surely, 2^{2120112001111} is an apocalyptic number.

2120112001111 is a deficient number, since it is larger than the sum of its proper divisors (266671067937).

2120112001111 is a wasteful number, since it uses less digits than its factorization.

2120112001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308290302 (or 308290279 counting only the distinct ones).

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

Adding to 2120112001111 its reverse (1111002110212), we get a palindrome (3231114111323).

It can be divided in two parts, 212011 and 2001111, that added together give a palindrome (2213122).

The spelling of 2120112001111 in words is "two trillion, one hundred twenty billion, one hundred twelve million, one thousand, one hundred eleven".