1331212201 has 8 divisors (see below), whose sum is σ = 1502308800. Its totient is φ = 1168461840.

The previous prime is 1331212187. The next prime is 1331212241. The reversal of 1331212201 is 1022121331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331212201 - 2⁹ = 1331211689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331212241) 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, 2086221 + ... + 2086858.

It is an arithmetic number, because the mean of its divisors is an integer number (187788600).

Almost surely, 2^1331212201 is an apocalyptic number.

1331212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1331212201 is a deficient number, since it is larger than the sum of its proper divisors (171096599).

1331212201 is a wasteful number, since it uses less digits than its factorization.

1331212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173119.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1331212201 is about 36485.7808056783. The cubic root of 1331212201 is about 1100.0584544694.

Adding to 1331212201 its reverse (1022121331), we get a palindrome (2353333532).

The spelling of 1331212201 in words is "one billion, three hundred thirty-one million, two hundred twelve thousand, two hundred one".