101200001001 has 16 divisors (see below), whose sum is σ = 147271800000. Its totient is φ = 61303417920.

The previous prime is 101200000999. The next prime is 101200001027. The reversal of 101200001001 is 100100002101.

It is not a de Polignac number, because 101200001001 - 2¹ = 101200000999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101200001051) 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, 679126 + ... + 814623.

It is an arithmetic number, because the mean of its divisors is an integer number (9204487500).

Almost surely, 2^101200001001 is an apocalyptic number.

101200001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101200001001 is a deficient number, since it is larger than the sum of its proper divisors (46071798999).

101200001001 is a wasteful number, since it uses less digits than its factorization.

101200001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495816.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 101200001001 its reverse (100100002101), we get a palindrome (201300003102).

The spelling of 101200001001 in words is "one hundred one billion, two hundred million, one thousand, one".