1122111121011 has 16 divisors (see below), whose sum is σ = 1500259554816. Its totient is φ = 746018653536.

The previous prime is 1122111120929. The next prime is 1122111121031. The reversal of 1122111121011 is 1101211112211.

It is not a de Polignac number, because 1122111121011 - 2¹⁹ = 1122110596723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122111121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25203376 + ... + 25247858.

It is an arithmetic number, because the mean of its divisors is an integer number (93766222176).

Almost surely, 2^{1122111121011} is an apocalyptic number.

1122111121011 is a deficient number, since it is larger than the sum of its proper divisors (378148433805).

1122111121011 is a wasteful number, since it uses less digits than its factorization.

1122111121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67402.

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

Adding to 1122111121011 its reverse (1101211112211), we get a palindrome (2223322233222).

The spelling of 1122111121011 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, eleven".