1201100211001 has 8 divisors (see below), whose sum is σ = 1267837790400. Its totient is φ = 1134714809520.

The previous prime is 1201100210987. The next prime is 1201100211067. The reversal of 1201100211001 is 1001120011021.

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

It is not a de Polignac number, because 1201100211001 - 2¹⁷ = 1201100079929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201100211071) 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, 88037470 + ... + 88051111.

It is an arithmetic number, because the mean of its divisors is an integer number (158479723800).

Almost surely, 2^{1201100211001} is an apocalyptic number.

It is an amenable number.

1201100211001 is a deficient number, since it is larger than the sum of its proper divisors (66737579399).

1201100211001 is a wasteful number, since it uses less digits than its factorization.

1201100211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176088959.

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

Adding to 1201100211001 its reverse (1001120011021), we get a palindrome (2202220222022).

The spelling of 1201100211001 in words is "one trillion, two hundred one billion, one hundred million, two hundred eleven thousand, one".