331020121222 has 48 divisors (see below), whose sum is σ = 591162485760. Its totient is φ = 138535224912.

The previous prime is 331020121189. The next prime is 331020121247. The reversal of 331020121222 is 222121020133.

It is a self number, because there is not a number n which added to its sum of digits gives 331020121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34916679 + ... + 34926157.

It is an arithmetic number, because the mean of its divisors is an integer number (12315885120).

Almost surely, 2^331020121222 is an apocalyptic number.

331020121222 is a deficient number, since it is larger than the sum of its proper divisors (260142364538).

331020121222 is a wasteful number, since it uses less digits than its factorization.

331020121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17825 (or 17818 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 331020121222 its reverse (222121020133), we get a palindrome (553141141355).

The spelling of 331020121222 in words is "three hundred thirty-one billion, twenty million, one hundred twenty-one thousand, two hundred twenty-two".