1121000210121 has 32 divisors (see below), whose sum is σ = 1719042209280. Its totient is φ = 642632140800.

The previous prime is 1121000210119. The next prime is 1121000210129. The reversal of 1121000210121 is 1210120001211.

It is not a de Polignac number, because 1121000210121 - 2¹ = 1121000210119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121000210097 and 1121000210106.

It is not an unprimeable number, because it can be changed into a prime (1121000210129) 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 31 ways as a sum of consecutive naturals, for example, 992695 + ... + 1796508.

It is an arithmetic number, because the mean of its divisors is an integer number (53720069040).

Almost surely, 2^{1121000210121} is an apocalyptic number.

1121000210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121000210121 is a deficient number, since it is larger than the sum of its proper divisors (598041999159).

1121000210121 is a wasteful number, since it uses less digits than its factorization.

1121000210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789877.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121000210121 its reverse (1210120001211), we get a palindrome (2331120211332).

The spelling of 1121000210121 in words is "one trillion, one hundred twenty-one billion, two hundred ten thousand, one hundred twenty-one".