102211221222 has 32 divisors (see below), whose sum is σ = 247784780160. Its totient is φ = 30973097160.

The previous prime is 102211221193. The next prime is 102211221257. The reversal of 102211221222 is 222122112201.

It is a happy number.

102211221222 is a `hidden beast` number, since 1 + 0 + 221 + 1 + 221 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102211221195 and 102211221204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86035788 + ... + 86036975.

It is an arithmetic number, because the mean of its divisors is an integer number (7743274380).

Almost surely, 2^102211221222 is an apocalyptic number.

102211221222 is an abundant number, since it is smaller than the sum of its proper divisors (145573558938).

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

102211221222 is a wasteful number, since it uses less digits than its factorization.

102211221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172072785 (or 172072779 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102211221222 its reverse (222122112201), we get a palindrome (324333333423).

The spelling of 102211221222 in words is "one hundred two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".