1200201201001 has 16 divisors (see below), whose sum is σ = 1310881955328. Its totient is φ = 1089782812800.

The previous prime is 1200201200927. The next prime is 1200201201029. The reversal of 1200201201001 is 1001021020021.

It is not a de Polignac number, because 1200201201001 - 2¹⁹ = 1200200676713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200201201041) 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, 107183935 + ... + 107195131.

It is an arithmetic number, because the mean of its divisors is an integer number (81930122208).

Almost surely, 2^{1200201201001} is an apocalyptic number.

1200201201001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200201201001 is a deficient number, since it is larger than the sum of its proper divisors (110680754327).

1200201201001 is a wasteful number, since it uses less digits than its factorization.

1200201201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22032.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200201201001 its reverse (1001021020021), we get a palindrome (2201222221022).

The spelling of 1200201201001 in words is "one trillion, two hundred billion, two hundred one million, two hundred one thousand, one".