223100021312 has 112 divisors (see below), whose sum is σ = 512482868352. Its totient is φ = 94383390720.

The previous prime is 223100021303. The next prime is 223100021341. The reversal of 223100021312 is 213120001322.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-3 number, since 3×223100021312³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73362512 + ... + 73365552.

It is an arithmetic number, because the mean of its divisors is an integer number (4575739896).

Almost surely, 2^223100021312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223100021312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256241434176).

223100021312 is an abundant number, since it is smaller than the sum of its proper divisors (289382847040).

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

223100021312 is a wasteful number, since it uses less digits than its factorization.

223100021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116 (or 5106 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 223100021312 its reverse (213120001322), we get a palindrome (436220022634).

The spelling of 223100021312 in words is "two hundred twenty-three billion, one hundred million, twenty-one thousand, three hundred twelve".