223022100312 has 96 divisors (see below), whose sum is σ = 660224682000. Its totient is φ = 67449557760.

The previous prime is 223022100293. The next prime is 223022100349. The reversal of 223022100312 is 213001220322.

223022100312 is a `hidden beast` number, since 2 + 230 + 22 + 100 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126514 + ... + 679742.

Almost surely, 2^223022100312 is an apocalyptic number.

223022100312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223022100312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330112341000).

223022100312 is an abundant number, since it is smaller than the sum of its proper divisors (437202581688).

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

223022100312 is a wasteful number, since it uses less digits than its factorization.

223022100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553761 (or 553754 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 223022100312 its reverse (213001220322), we get a palindrome (436023320634).

The spelling of 223022100312 in words is "two hundred twenty-three billion, twenty-two million, one hundred thousand, three hundred twelve".