102221112009 has 32 divisors (see below), whose sum is σ = 144711064960. Its totient is φ = 64095639552.

The previous prime is 102221112001. The next prime is 102221112017. The reversal of 102221112009 is 900211122201.

It is an interprime number because it is at equal distance from previous prime (102221112001) and next prime (102221112017).

It is not a de Polignac number, because 102221112009 - 2³ = 102221112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221112001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352587 + ... + 573375.

It is an arithmetic number, because the mean of its divisors is an integer number (4522220780).

Almost surely, 2^102221112009 is an apocalyptic number.

It is an amenable number.

102221112009 is a deficient number, since it is larger than the sum of its proper divisors (42489952951).

102221112009 is a wasteful number, since it uses less digits than its factorization.

102221112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220969.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 102221112009 in words is "one hundred two billion, two hundred twenty-one million, one hundred twelve thousand, nine".