1320212001 has 16 divisors (see below), whose sum is σ = 1785099008. Its totient is φ = 867801600.

The previous prime is 1320211957. The next prime is 1320212053. The reversal of 1320212001 is 1002120231.

It is not a de Polignac number, because 1320212001 - 2¹⁰ = 1320210977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320212801) 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, 70491 + ... + 87231.

It is an arithmetic number, because the mean of its divisors is an integer number (111568688).

Almost surely, 2^1320212001 is an apocalyptic number.

It is an amenable number.

1320212001 is a deficient number, since it is larger than the sum of its proper divisors (464887007).

1320212001 is a wasteful number, since it uses less digits than its factorization.

1320212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17112.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1320212001 is about 36334.7216997736. The cubic root of 1320212001 is about 1097.0200338314.

Adding to 1320212001 its reverse (1002120231), we get a palindrome (2322332232).

The spelling of 1320212001 in words is "one billion, three hundred twenty million, two hundred twelve thousand, one".