1001121012101 has 16 divisors (see below), whose sum is σ = 1174763616768. Its totient is φ = 835231862400.

The previous prime is 1001121012053. The next prime is 1001121012193. The reversal of 1001121012101 is 1012101211001.

It is a cyclic number.

It is not a de Polignac number, because 1001121012101 - 2¹⁴ = 1001120995717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001121017101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3922970 + ... + 4170363.

It is an arithmetic number, because the mean of its divisors is an integer number (73422726048).

Almost surely, 2^{1001121012101} is an apocalyptic number.

It is an amenable number.

1001121012101 is a deficient number, since it is larger than the sum of its proper divisors (173642604667).

1001121012101 is an equidigital number, since it uses as much as digits as its factorization.

1001121012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093812.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1001121012101 its reverse (1012101211001), we get a palindrome (2013222223102).

The spelling of 1001121012101 in words is "one trillion, one billion, one hundred twenty-one million, twelve thousand, one hundred one".