102111021222 has 32 divisors (see below), whose sum is σ = 233417521152. Its totient is φ = 29171964864.

The previous prime is 102111021217. The next prime is 102111021223. The reversal of 102111021222 is 222120111201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392938 + ... + 598850.

It is an arithmetic number, because the mean of its divisors is an integer number (7294297536).

Almost surely, 2^102111021222 is an apocalyptic number.

102111021222 is an abundant number, since it is smaller than the sum of its proper divisors (131306499930).

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

102111021222 is a wasteful number, since it uses less digits than its factorization.

102111021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217732.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102111021222 its reverse (222120111201), we get a palindrome (324231132423).

The spelling of 102111021222 in words is "one hundred two billion, one hundred eleven million, twenty-one thousand, two hundred twenty-two".