220102002110221 has 16 divisors (see below), whose sum is σ = 274421115002880. Its totient is φ = 171502910308080.

The previous prime is 220102002110209. The next prime is 220102002110227. The reversal of 220102002110221 is 122011200201022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220102002110221 - 2⁷ = 220102002110093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220102002110195 and 220102002110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220102002110227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40275381 + ... + 45412666.

It is an arithmetic number, because the mean of its divisors is an integer number (17151319687680).

Almost surely, 2^{220102002110221} is an apocalyptic number.

It is an amenable number.

220102002110221 is a deficient number, since it is larger than the sum of its proper divisors (54319112892659).

220102002110221 is a wasteful number, since it uses less digits than its factorization.

220102002110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85721424.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220102002110221 its reverse (122011200201022), we get a palindrome (342113202311243).

The spelling of 220102002110221 in words is "two hundred twenty trillion, one hundred two billion, two million, one hundred ten thousand, two hundred twenty-one".