1121122011111 has 16 divisors (see below), whose sum is σ = 1495793671680. Its totient is φ = 746932639680.

The previous prime is 1121122011109. The next prime is 1121122011133. The reversal of 1121122011111 is 1111102211211.

It is not a de Polignac number, because 1121122011111 - 2¹ = 1121122011109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121122013111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52400226 + ... + 52421616.

It is an arithmetic number, because the mean of its divisors is an integer number (93487104480).

Almost surely, 2^{1121122011111} is an apocalyptic number.

1121122011111 is a deficient number, since it is larger than the sum of its proper divisors (374671660569).

1121122011111 is a wasteful number, since it uses less digits than its factorization.

1121122011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31846.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1121122011111 its reverse (1111102211211), we get a palindrome (2232224222322).

The spelling of 1121122011111 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, eleven thousand, one hundred eleven".