323212223232220 has 48 divisors (see below), whose sum is σ = 775722400104960. Its totient is φ = 110813753058624.

The previous prime is 323212223232193. The next prime is 323212223232251. The reversal of 323212223232220 is 22232322212323.

It is a super-2 number, since 2×323212223232220² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11085880 + ... + 27736639.

It is an arithmetic number, because the mean of its divisors is an integer number (16160883335520).

Almost surely, 2^{323212223232220} is an apocalyptic number.

It is an amenable number.

323212223232220 is an abundant number, since it is smaller than the sum of its proper divisors (452510176872740).

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

323212223232220 is a wasteful number, since it uses less digits than its factorization.

323212223232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38882002 (or 38882000 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 323212223232220 its reverse (22232322212323), we get a palindrome (345444545444543).

The spelling of 323212223232220 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred twenty".