331422421220 has 24 divisors (see below), whose sum is σ = 759258638208. Its totient is φ = 120517244000.

The previous prime is 331422421199. The next prime is 331422421229. The reversal of 331422421220 is 22124224133.

It is a self number, because there is not a number n which added to its sum of digits gives 331422421220.

It is not an unprimeable number, because it can be changed into a prime (331422421229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753232556 + ... + 753232995.

It is an arithmetic number, because the mean of its divisors is an integer number (31635776592).

Almost surely, 2^331422421220 is an apocalyptic number.

It is an amenable number.

331422421220 is an abundant number, since it is smaller than the sum of its proper divisors (427836216988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331422421220 is a wasteful number, since it uses less digits than its factorization.

331422421220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506465571 (or 1506465569 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 331422421220 its reverse (22124224133), we get a palindrome (353546645353).

The spelling of 331422421220 in words is "three hundred thirty-one billion, four hundred twenty-two million, four hundred twenty-one thousand, two hundred twenty".