223212215423444 has 96 divisors (see below), whose sum is σ = 470459471260800. Its totient is φ = 91686536686080.

The previous prime is 223212215423443. The next prime is 223212215423453. The reversal of 223212215423444 is 444324512212322.

It is a happy number.

It is a super-3 number, since 3×223212215423444³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223212215423443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104216342 + ... + 106336589.

It is an arithmetic number, because the mean of its divisors is an integer number (4900619492300).

Almost surely, 2^{223212215423444} is an apocalyptic number.

It is an amenable number.

223212215423444 is an abundant number, since it is smaller than the sum of its proper divisors (247247255837356).

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

223212215423444 is a wasteful number, since it uses less digits than its factorization.

223212215423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210553033 (or 210553031 counting only the distinct ones).

The product of its digits is 737280, while the sum is 41.

Adding to 223212215423444 its reverse (444324512212322), we get a palindrome (667536727635766).

The spelling of 223212215423444 in words is "two hundred twenty-three trillion, two hundred twelve billion, two hundred fifteen million, four hundred twenty-three thousand, four hundred forty-four".