1331213220001 has 16 divisors (see below), whose sum is σ = 1546415173888. Its totient is φ = 1122270552000.

The previous prime is 1331213219993. The next prime is 1331213220101. The reversal of 1331213220001 is 1000223121331.

It is a cyclic number.

It is not a de Polignac number, because 1331213220001 - 2³ = 1331213219993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331213220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8381476 + ... + 8538826.

It is an arithmetic number, because the mean of its divisors is an integer number (96650948368).

Almost surely, 2^{1331213220001} is an apocalyptic number.

It is an amenable number.

1331213220001 is a deficient number, since it is larger than the sum of its proper divisors (215201953887).

1331213220001 is a wasteful number, since it uses less digits than its factorization.

1331213220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177232.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1331213220001 its reverse (1000223121331), we get a palindrome (2331436341332).

The spelling of 1331213220001 in words is "one trillion, three hundred thirty-one billion, two hundred thirteen million, two hundred twenty thousand, one".