223212215423451 has 8 divisors (see below), whose sum is σ = 297616359274560. Its totient is φ = 148808107593992.

The previous prime is 223212215423443. The next prime is 223212215423453. The reversal of 223212215423451 is 154324512212322.

223212215423451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223212215423451 - 2³ = 223212215423443 is a prime.

It is a super-3 number, since 3×223212215423451³ (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 (223212215423453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13458496 + ... + 25051058.

It is an arithmetic number, because the mean of its divisors is an integer number (37202044909320).

Almost surely, 2^{223212215423451} is an apocalyptic number.

223212215423451 is a deficient number, since it is larger than the sum of its proper divisors (74404143851109).

223212215423451 is a wasteful number, since it uses less digits than its factorization.

223212215423451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18010825.

The product of its digits is 230400, while the sum is 39.

Adding to 223212215423451 its reverse (154324512212322), we get a palindrome (377536727635773).

The spelling of 223212215423451 in words is "two hundred twenty-three trillion, two hundred twelve billion, two hundred fifteen million, four hundred twenty-three thousand, four hundred fifty-one".