331211112122201 has 4 divisors (see below), whose sum is σ = 331891217075712. Its totient is φ = 330531007168692.

The previous prime is 331211112122197. The next prime is 331211112122353. The reversal of 331211112122201 is 102221211112133.

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 331211112122201 - 2² = 331211112122197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331211112128201) 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, 340052476025 + ... + 340052476998.

It is an arithmetic number, because the mean of its divisors is an integer number (82972804268928).

Almost surely, 2^{331211112122201} is an apocalyptic number.

It is an amenable number.

331211112122201 is a deficient number, since it is larger than the sum of its proper divisors (680104953511).

331211112122201 is an equidigital number, since it uses as much as digits as its factorization.

331211112122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680104953510.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 331211112122201 its reverse (102221211112133), we get a palindrome (433432323234334).

The spelling of 331211112122201 in words is "three hundred thirty-one trillion, two hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, two hundred one".