1000122013121 has 12 divisors (see below), whose sum is σ = 1269171534960. Its totient is φ = 779315853960.

The previous prime is 1000122013073. The next prime is 1000122013157. The reversal of 1000122013121 is 1213102210001.

It is not a de Polignac number, because 1000122013121 - 2¹⁴ = 1000121996737 is a prime.

It is a super-2 number, since 2×1000122013121² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1000122013096 and 1000122013105.

It is not an unprimeable number, because it can be changed into a prime (1000122013721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927756431 + ... + 927757508.

It is an arithmetic number, because the mean of its divisors is an integer number (105764294580).

Almost surely, 2^{1000122013121} is an apocalyptic number.

1000122013121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000122013121 is a deficient number, since it is larger than the sum of its proper divisors (269049521839).

1000122013121 is a wasteful number, since it uses less digits than its factorization.

1000122013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855513964 (or 1855513957 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1000122013121 its reverse (1213102210001), we get a palindrome (2213224223122).

The spelling of 1000122013121 in words is "one trillion, one hundred twenty-two million, thirteen thousand, one hundred twenty-one".