1121022123111 has 32 divisors (see below), whose sum is σ = 1813742115840. Its totient is φ = 678661401600.

The previous prime is 1121022123083. The next prime is 1121022123131. The reversal of 1121022123111 is 1113212201211.

It is a happy number.

1121022123111 is a `hidden beast` number, since 1 + 1 + 210 + 221 + 231 + 1 + 1 = 666.

It is not a de Polignac number, because 1121022123111 - 2⁹ = 1121022122599 is a prime.

It is a super-3 number, since 3×1121022123111³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121022123131) 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 31 ways as a sum of consecutive naturals, for example, 1801050 + ... + 2342183.

It is an arithmetic number, because the mean of its divisors is an integer number (56679441120).

Almost surely, 2^{1121022123111} is an apocalyptic number.

1121022123111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121022123111 is a deficient number, since it is larger than the sum of its proper divisors (692719992729).

1121022123111 is a wasteful number, since it uses less digits than its factorization.

1121022123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144164 (or 4144158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1121022123111 its reverse (1113212201211), we get a palindrome (2234234324322).

The spelling of 1121022123111 in words is "one trillion, one hundred twenty-one billion, twenty-two million, one hundred twenty-three thousand, one hundred eleven".