102120021222 has 16 divisors (see below), whose sum is σ = 204259102320. Its totient is φ = 34036830432.

The previous prime is 102120021197. The next prime is 102120021253. The reversal of 102120021222 is 222120021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724033 + ... + 853500.

It is an arithmetic number, because the mean of its divisors is an integer number (12766193895).

Almost surely, 2^102120021222 is an apocalyptic number.

102120021222 is an abundant number, since it is smaller than the sum of its proper divisors (102139081098).

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

102120021222 is a wasteful number, since it uses less digits than its factorization.

102120021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588327.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102120021222 its reverse (222120021201), we get a palindrome (324240042423).

The spelling of 102120021222 in words is "one hundred two billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".