102012221223 has 24 divisors (see below), whose sum is σ = 163779492240. Its totient is φ = 60659064960.

The previous prime is 102012221197. The next prime is 102012221231. The reversal of 102012221223 is 322122210201.

It is not a de Polignac number, because 102012221223 - 2¹² = 102012217127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012221196 and 102012221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012221723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9715758 + ... + 9726251.

It is an arithmetic number, because the mean of its divisors is an integer number (6824145510).

Almost surely, 2^102012221223 is an apocalyptic number.

102012221223 is a deficient number, since it is larger than the sum of its proper divisors (61767271017).

102012221223 is a wasteful number, since it uses less digits than its factorization.

102012221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19442079 (or 19442076 counting only the distinct ones).

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

Adding to 102012221223 its reverse (322122210201), we get a palindrome (424134431424).

The spelling of 102012221223 in words is "one hundred two billion, twelve million, two hundred twenty-one thousand, two hundred twenty-three".