331212211201201 has 4 divisors (see below), whose sum is σ = 361322412219504. Its totient is φ = 301102010182900.

The previous prime is 331212211201199. The next prime is 331212211201231. The reversal of 331212211201201 is 102102112212133.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 331212211201201 - 2¹ = 331212211201199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331212211201231) 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 3 ways as a sum of consecutive naturals, for example, 15055100509135 + ... + 15055100509156.

It is an arithmetic number, because the mean of its divisors is an integer number (90330603054876).

Almost surely, 2^{331212211201201} is an apocalyptic number.

It is an amenable number.

331212211201201 is a deficient number, since it is larger than the sum of its proper divisors (30110201018303).

331212211201201 is a wasteful number, since it uses less digits than its factorization.

331212211201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30110201018302.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 331212211201201 its reverse (102102112212133), we get a palindrome (433314323413334).

The spelling of 331212211201201 in words is "three hundred thirty-one trillion, two hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred one".