1121021011011 has 16 divisors (see below), whose sum is σ = 1701470626560. Its totient is φ = 649867252320.

The previous prime is 1121021010973. The next prime is 1121021011049. The reversal of 1121021011011 is 1101101201211.

It is an interprime number because it is at equal distance from previous prime (1121021010973) and next prime (1121021011049).

It is not a de Polignac number, because 1121021011011 - 2⁶ = 1121021010947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121021011711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738484756 + ... + 738486273.

It is an arithmetic number, because the mean of its divisors is an integer number (106341914160).

Almost surely, 2^{1121021011011} is an apocalyptic number.

1121021011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121021011011 is a deficient number, since it is larger than the sum of its proper divisors (580449615549).

1121021011011 is a wasteful number, since it uses less digits than its factorization.

1121021011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476971066.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1121021011011 its reverse (1101101201211), we get a palindrome (2222122212222).

The spelling of 1121021011011 in words is "one trillion, one hundred twenty-one billion, twenty-one million, eleven thousand, eleven".