1122001012111 has 20 divisors (see below), whose sum is σ = 1309053153672. Its totient is φ = 961619746416.

The previous prime is 1122001012081. The next prime is 1122001012133. The reversal of 1122001012111 is 1112101002211.

It is a happy number.

It is not a de Polignac number, because 1122001012111 - 2⁷ = 1122001011983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122001012091 and 1122001012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122001072111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35550240 + ... + 35581786.

Almost surely, 2^{1122001012111} is an apocalyptic number.

1122001012111 is a deficient number, since it is larger than the sum of its proper divisors (187052141561).

1122001012111 is an frugal number, since it uses more digits than its factorization.

1122001012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46388 (or 46367 counting only the distinct ones).

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

Adding to 1122001012111 its reverse (1112101002211), we get a palindrome (2234102014322).

The spelling of 1122001012111 in words is "one trillion, one hundred twenty-two billion, one million, twelve thousand, one hundred eleven".