2211220323320 has 128 divisors (see below), whose sum is σ = 5041249920000. Its totient is φ = 872845327872.

The previous prime is 2211220323313. The next prime is 2211220323331. The reversal of 2211220323320 is 233230221122.

It is a super-4 number, since 4×2211220323320⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 942146387 + ... + 942148733.

It is an arithmetic number, because the mean of its divisors is an integer number (39384765000).

Almost surely, 2^{2211220323320} is an apocalyptic number.

2211220323320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211220323320 is an abundant number, since it is smaller than the sum of its proper divisors (2830029596680).

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

2211220323320 is a wasteful number, since it uses less digits than its factorization.

2211220323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445 (or 3441 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2211220323320 its reverse (233230221122), we get a palindrome (2444450544442).

The spelling of 2211220323320 in words is "two trillion, two hundred eleven billion, two hundred twenty million, three hundred twenty-three thousand, three hundred twenty".