223111213001220 has 48 divisors (see below), whose sum is σ = 624739016639808. Its totient is φ = 59493692968320.

The previous prime is 223111213001177. The next prime is 223111213001221. The reversal of 223111213001220 is 22100312111322.

It is a super-3 number, since 3×223111213001220³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (223111213001221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 80834514 + ... + 83549033.

It is an arithmetic number, because the mean of its divisors is an integer number (13015396179996).

Almost surely, 2^{223111213001220} is an apocalyptic number.

223111213001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223111213001220 is an abundant number, since it is smaller than the sum of its proper divisors (401627803638588).

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

223111213001220 is a wasteful number, since it uses less digits than its factorization.

223111213001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164406180 (or 164406178 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 223111213001220 its reverse (22100312111322), we get a palindrome (245211525112542).

The spelling of 223111213001220 in words is "two hundred twenty-three trillion, one hundred eleven billion, two hundred thirteen million, one thousand, two hundred twenty".