1001112013021 has 16 divisors (see below), whose sum is σ = 1038335643904. Its totient is φ = 964426829184.

The previous prime is 1001112013019. The next prime is 1001112013061. The reversal of 1001112013021 is 1203102111001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1001112013021 - 2¹ = 1001112013019 is a prime.

It is a super-2 number, since 2×1001112013021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001112012992 and 1001112013010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001112013061) 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, 24953440 + ... + 24993526.

It is an arithmetic number, because the mean of its divisors is an integer number (64895977744).

Almost surely, 2^{1001112013021} is an apocalyptic number.

It is an amenable number.

1001112013021 is a deficient number, since it is larger than the sum of its proper divisors (37223630883).

1001112013021 is a wasteful number, since it uses less digits than its factorization.

1001112013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46780.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1001112013021 its reverse (1203102111001), we get a palindrome (2204214124022).

The spelling of 1001112013021 in words is "one trillion, one billion, one hundred twelve million, thirteen thousand, twenty-one".