1001120112021 has 16 divisors (see below), whose sum is σ = 1337400115200. Its totient is φ = 666127756848.

The previous prime is 1001120111989. The next prime is 1001120112023. The reversal of 1001120112021 is 1202110211001.

It is not a de Polignac number, because 1001120112021 - 2⁵ = 1001120111989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001120111988 and 1001120112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001120112023) 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, 3929500 + ... + 4176506.

It is an arithmetic number, because the mean of its divisors is an integer number (83587507200).

Almost surely, 2^{1001120112021} is an apocalyptic number.

It is an amenable number.

1001120112021 is a deficient number, since it is larger than the sum of its proper divisors (336280003179).

1001120112021 is a wasteful number, since it uses less digits than its factorization.

1001120112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249608.

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

Adding to 1001120112021 its reverse (1202110211001), we get a palindrome (2203230323022).

The spelling of 1001120112021 in words is "one trillion, one billion, one hundred twenty million, one hundred twelve thousand, twenty-one".