102120212223 has 6 divisors (see below), whose sum is σ = 147506973224. Its totient is φ = 68080141476.

The previous prime is 102120212197. The next prime is 102120212237. The reversal of 102120212223 is 322212021201.

It is not a de Polignac number, because 102120212223 - 2⁵ = 102120212191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102120212196 and 102120212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120212263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5673345115 + ... + 5673345132.

Almost surely, 2^102120212223 is an apocalyptic number.

102120212223 is a deficient number, since it is larger than the sum of its proper divisors (45386761001).

102120212223 is a wasteful number, since it uses less digits than its factorization.

102120212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346690253 (or 11346690250 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102120212223 its reverse (322212021201), we get a palindrome (424332233424).

The spelling of 102120212223 in words is "one hundred two billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-three".