223106247052642 has 4 divisors (see below), whose sum is σ = 334659370578966. Its totient is φ = 111553123526320.

The previous prime is 223106247052639. The next prime is 223106247052651. The reversal of 223106247052642 is 246250742601322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 197149372098121 + 25956874954521 = 14040989^2 + 5094789^2 .

It is a super-3 number, since 3×223106247052642³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 223106247052592 and 223106247052601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55776561763159 + ... + 55776561763162.

Almost surely, 2^{223106247052642} is an apocalyptic number.

223106247052642 is a deficient number, since it is larger than the sum of its proper divisors (111553123526324).

223106247052642 is a wasteful number, since it uses less digits than its factorization.

223106247052642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111553123526323.

The product of its (nonzero) digits is 1935360, while the sum is 46.

Adding to 223106247052642 its reverse (246250742601322), we get a palindrome (469356989653964).

The spelling of 223106247052642 in words is "two hundred twenty-three trillion, one hundred six billion, two hundred forty-seven million, fifty-two thousand, six hundred forty-two".