102323221221 has 24 divisors (see below), whose sum is σ = 156076746784. Its totient is φ = 59264121600.

The previous prime is 102323221207. The next prime is 102323221229. The reversal of 102323221221 is 122122323201.

It is not a de Polignac number, because 102323221221 - 2³³ = 93733286629 is a prime.

It is a Duffinian number.

102323221221 is a modest number, since divided by 221221 gives 102323 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102323221229) 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, 4527955 + ... + 4550496.

Almost surely, 2^102323221221 is an apocalyptic number.

It is an amenable number.

102323221221 is a deficient number, since it is larger than the sum of its proper divisors (53753525563).

102323221221 is a wasteful number, since it uses less digits than its factorization.

102323221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078501 (or 9078484 counting only the distinct ones).

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

Adding to 102323221221 its reverse (122122323201), we get a palindrome (224445544422).

The spelling of 102323221221 in words is "one hundred two billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty-one".