102221221011 has 32 divisors (see below), whose sum is σ = 172281381888. Its totient is φ = 52461613440.

The previous prime is 102221221009. The next prime is 102221221021. The reversal of 102221221011 is 110122122201.

It is not a de Polignac number, because 102221221011 - 2¹ = 102221221009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102221221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5049855 + ... + 5070056.

It is an arithmetic number, because the mean of its divisors is an integer number (5383793184).

Almost surely, 2^102221221011 is an apocalyptic number.

102221221011 is a deficient number, since it is larger than the sum of its proper divisors (70060160877).

102221221011 is a wasteful number, since it uses less digits than its factorization.

102221221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119971.

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

Adding to 102221221011 its reverse (110122122201), we get a palindrome (212343343212).

The spelling of 102221221011 in words is "one hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, eleven".