102223355621 has 8 divisors (see below), whose sum is σ = 102846372480. Its totient is φ = 101600916192.

The previous prime is 102223355617. The next prime is 102223355623. The reversal of 102223355621 is 126553322201.

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 102223355621 - 2² = 102223355617 is a prime.

It is a super-2 number, since 2×102223355621² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102223355623) 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, 213476 + ... + 500018.

It is an arithmetic number, because the mean of its divisors is an integer number (12855796560).

Almost surely, 2^102223355621 is an apocalyptic number.

It is an amenable number.

102223355621 is a deficient number, since it is larger than the sum of its proper divisors (623016859).

102223355621 is a wasteful number, since it uses less digits than its factorization.

102223355621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288715.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 102223355621 its reverse (126553322201), we get a palindrome (228776677822).

The spelling of 102223355621 in words is "one hundred two billion, two hundred twenty-three million, three hundred fifty-five thousand, six hundred twenty-one".