3123223232220 has 288 divisors, whose sum is σ = 12345918818688. Its totient is φ = 620203032576.

The previous prime is 3123223232123. The next prime is 3123223232323. The reversal of 3123223232220 is 222323223213.

3123223232220 is a `hidden beast` number, since 3 + 12 + 322 + 3 + 2 + 322 + 2 + 0 = 666.

It is a super-2 number, since 2×3123223232220² (a number of 26 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 95 ways as a sum of consecutive naturals, for example, 5329569 + ... + 5886488.

It is an arithmetic number, because the mean of its divisors is an integer number (42867773676).

Almost surely, 2^{3123223232220} is an apocalyptic number.

3123223232220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3123223232220 is an abundant number, since it is smaller than the sum of its proper divisors (9222695586468).

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

3123223232220 is a wasteful number, since it uses less digits than its factorization.

3123223232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11216109 (or 11216104 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 3123223232220 its reverse (222323223213), we get a palindrome (3345546455433).

The spelling of 3123223232220 in words is "three trillion, one hundred twenty-three billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred twenty".