102210220221 has 16 divisors (see below), whose sum is σ = 137710456128. Its totient is φ = 67426515200.

The previous prime is 102210220183. The next prime is 102210220223. The reversal of 102210220221 is 122022012201.

It is a cyclic number.

It is not a de Polignac number, because 102210220221 - 2³⁰ = 101136478397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102210220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210220223) 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 15 ways as a sum of consecutive naturals, for example, 102091 + ... + 463511.

It is an arithmetic number, because the mean of its divisors is an integer number (8606903508).

Almost surely, 2^102210220221 is an apocalyptic number.

It is an amenable number.

102210220221 is a deficient number, since it is larger than the sum of its proper divisors (35500235907).

102210220221 is a wasteful number, since it uses less digits than its factorization.

102210220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362412.

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

Adding to 102210220221 its reverse (122022012201), we get a palindrome (224232232422).

The spelling of 102210220221 in words is "one hundred two billion, two hundred ten million, two hundred twenty thousand, two hundred twenty-one".