331220211233122 has 4 divisors (see below), whose sum is σ = 496830316849686. Its totient is φ = 165610105616560.

The previous prime is 331220211233089. The next prime is 331220211233167. The reversal of 331220211233122 is 221332112022133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 260914853873881 + 70305357359241 = 16152859^2 + 8384829^2 .

It is a super-2 number, since 2×331220211233122² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 82805052808279 + ... + 82805052808282.

Almost surely, 2^{331220211233122} is an apocalyptic number.

331220211233122 is a deficient number, since it is larger than the sum of its proper divisors (165610105616564).

331220211233122 is a wasteful number, since it uses less digits than its factorization.

331220211233122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165610105616563.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 331220211233122 its reverse (221332112022133), we get a palindrome (552552323255255).

The spelling of 331220211233122 in words is "three hundred thirty-one trillion, two hundred twenty billion, two hundred eleven million, two hundred thirty-three thousand, one hundred twenty-two".