102220003221 has 16 divisors (see below), whose sum is σ = 155823057024. Its totient is φ = 58389214464.

The previous prime is 102220003181. The next prime is 102220003243. The reversal of 102220003221 is 122300022201.

It is a happy number.

It is not a de Polignac number, because 102220003221 - 2⁶ = 102220003157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102220003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220003121) 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, 869056 + ... + 979641.

It is an arithmetic number, because the mean of its divisors is an integer number (9738941064).

Almost surely, 2^102220003221 is an apocalyptic number.

It is an amenable number.

102220003221 is a deficient number, since it is larger than the sum of its proper divisors (53603053803).

102220003221 is a wasteful number, since it uses less digits than its factorization.

102220003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851340.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 102220003221 its reverse (122300022201), we get a palindrome (224520025422).

The spelling of 102220003221 in words is "one hundred two billion, two hundred twenty million, three thousand, two hundred twenty-one".