1201002221001 has 16 divisors (see below), whose sum is σ = 1753709658048. Its totient is φ = 725047910400.

The previous prime is 1201002220963. The next prime is 1201002221011. The reversal of 1201002221001 is 1001222001021.

It is not a de Polignac number, because 1201002221001 - 2¹⁷ = 1201002089929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201002221011) 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, 70796980 + ... + 70813941.

It is an arithmetic number, because the mean of its divisors is an integer number (109606853628).

Almost surely, 2^{1201002221001} is an apocalyptic number.

1201002221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201002221001 is a deficient number, since it is larger than the sum of its proper divisors (552707437047).

1201002221001 is a wasteful number, since it uses less digits than its factorization.

1201002221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141611192.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1201002221001 its reverse (1001222001021), we get a palindrome (2202224222022).

The spelling of 1201002221001 in words is "one trillion, two hundred one billion, two million, two hundred twenty-one thousand, one".