1001198120001 has 4 divisors (see below), whose sum is σ = 1334930826672. Its totient is φ = 667465413332.

The previous prime is 1001198119979. The next prime is 1001198120017. The reversal of 1001198120001 is 1000218911001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1001198120001 - 2⁶ = 1001198119937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001198120101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166866353331 + ... + 166866353336.

It is an arithmetic number, because the mean of its divisors is an integer number (333732706668).

Almost surely, 2^{1001198120001} is an apocalyptic number.

It is an amenable number.

1001198120001 is a deficient number, since it is larger than the sum of its proper divisors (333732706671).

1001198120001 is an equidigital number, since it uses as much as digits as its factorization.

1001198120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333732706670.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 1001198120001 in words is "one trillion, one billion, one hundred ninety-eight million, one hundred twenty thousand, one".