221123223102 has 8 divisors (see below), whose sum is σ = 442246446216. Its totient is φ = 73707741032.

The previous prime is 221123223077. The next prime is 221123223137. The reversal of 221123223102 is 201322321122.

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

221123223102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18426935253 + ... + 18426935264.

It is an arithmetic number, because the mean of its divisors is an integer number (55280805777).

Almost surely, 2^221123223102 is an apocalyptic number.

221123223102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221123223102 is a wasteful number, since it uses less digits than its factorization.

221123223102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36853870522.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221123223102 its reverse (201322321122), we get a palindrome (422445544224).

The spelling of 221123223102 in words is "two hundred twenty-one billion, one hundred twenty-three million, two hundred twenty-three thousand, one hundred two".