1001012002111 has 8 divisors (see below), whose sum is σ = 1095160109184. Its totient is φ = 907388397720.

The previous prime is 1001012002097. The next prime is 1001012002127. The reversal of 1001012002111 is 1112002101001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001012002111 - 2²¹ = 1001009904959 is a prime.

It is a super-3 number, since 3×1001012002111³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001012002171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131121675 + ... + 131129308.

It is an arithmetic number, because the mean of its divisors is an integer number (136895013648).

Almost surely, 2^{1001012002111} is an apocalyptic number.

1001012002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001012002111 is a deficient number, since it is larger than the sum of its proper divisors (94148107073).

1001012002111 is a wasteful number, since it uses less digits than its factorization.

1001012002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262251341.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1001012002111 its reverse (1112002101001), we get a palindrome (2113014103112).

The spelling of 1001012002111 in words is "one trillion, one billion, twelve million, two thousand, one hundred eleven".