1320212111001 has 16 divisors (see below), whose sum is σ = 2054555019264. Its totient is φ = 738355708944.

The previous prime is 1320212110961. The next prime is 1320212111021. The reversal of 1320212111001 is 1001112120231.

It is not a de Polignac number, because 1320212111001 - 2¹¹ = 1320212108953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320212111021) 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, 668799475 + ... + 668801448.

It is an arithmetic number, because the mean of its divisors is an integer number (128409688704).

Almost surely, 2^{1320212111001} is an apocalyptic number.

It is an amenable number.

1320212111001 is a deficient number, since it is larger than the sum of its proper divisors (734342908263).

1320212111001 is a wasteful number, since it uses less digits than its factorization.

1320212111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337600980.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1320212111001 its reverse (1001112120231), we get a palindrome (2321324231232).

The spelling of 1320212111001 in words is "one trillion, three hundred twenty billion, two hundred twelve million, one hundred eleven thousand, one".