1331312211201 has 8 divisors (see below), whose sum is σ = 2028666226624. Its totient is φ = 760749834960.

The previous prime is 1331312211161. The next prime is 1331312211223. The reversal of 1331312211201 is 1021122131331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331312211201 - 2⁶ = 1331312211137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 63395819581 = 1331312211201 / (1 + 3 + 3 + 1 + 3 + 1 + 2 + 2 + 1 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331312211301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31697909770 + ... + 31697909811.

It is an arithmetic number, because the mean of its divisors is an integer number (253583278328).

Almost surely, 2^{1331312211201} is an apocalyptic number.

It is an amenable number.

1331312211201 is a deficient number, since it is larger than the sum of its proper divisors (697354015423).

1331312211201 is an equidigital number, since it uses as much as digits as its factorization.

1331312211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63395819591.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1331312211201 its reverse (1021122131331), we get a palindrome (2352434342532).

The spelling of 1331312211201 in words is "one trillion, three hundred thirty-one billion, three hundred twelve million, two hundred eleven thousand, two hundred one".