331211201 has 4 divisors (see below), whose sum is σ = 345611712. Its totient is φ = 316810692.

The previous prime is 331211189. The next prime is 331211203. The reversal of 331211201 is 102112133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102112133 = 107 ⋅954319.

It is a cyclic number.

It is not a de Polignac number, because 331211201 - 2¹⁸ = 330949057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331211203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7200221 + ... + 7200266.

It is an arithmetic number, because the mean of its divisors is an integer number (86402928).

Almost surely, 2^331211201 is an apocalyptic number.

It is an amenable number.

331211201 is a deficient number, since it is larger than the sum of its proper divisors (14400511).

331211201 is a wasteful number, since it uses less digits than its factorization.

331211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400510.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 331211201 is about 18199.2088014837. The cubic root of 331211201 is about 691.8867363658.

Adding to 331211201 its reverse (102112133), we get a palindrome (433323334).

The spelling of 331211201 in words is "three hundred thirty-one million, two hundred eleven thousand, two hundred one".