331021022 has 8 divisors (see below), whose sum is σ = 513653400. Its totient is φ = 159803224.

The previous prime is 331021013. The next prime is 331021027. The reversal of 331021022 is 220120133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 331020988 and 331021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331021027) 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, 2853572 + ... + 2853687.

It is an arithmetic number, because the mean of its divisors is an integer number (64206675).

Almost surely, 2^331021022 is an apocalyptic number.

331021022 is a deficient number, since it is larger than the sum of its proper divisors (182632378).

331021022 is a wasteful number, since it uses less digits than its factorization.

331021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707290.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 331021022 is about 18193.9831262976. The cubic root of 331021022 is about 691.7542856115.

Adding to 331021022 its reverse (220120133), we get a palindrome (551141155).

The spelling of 331021022 in words is "three hundred thirty-one million, twenty-one thousand, twenty-two".