102201000022221 has 4 divisors (see below), whose sum is σ = 136268000029632. Its totient is φ = 68134000014812.

The previous prime is 102201000022159. The next prime is 102201000022241. The reversal of 102201000022221 is 122220000102201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102201000022221 - 2⁶ = 102201000022157 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 102201000022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201000022241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17033500003701 + ... + 17033500003706.

It is an arithmetic number, because the mean of its divisors is an integer number (34067000007408).

Almost surely, 2^{102201000022221} is an apocalyptic number.

It is an amenable number.

102201000022221 is a deficient number, since it is larger than the sum of its proper divisors (34067000007411).

102201000022221 is an equidigital number, since it uses as much as digits as its factorization.

102201000022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34067000007410.

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

Adding to 102201000022221 its reverse (122220000102201), we get a palindrome (224421000124422).

The spelling of 102201000022221 in words is "one hundred two trillion, two hundred one billion, twenty-two thousand, two hundred twenty-one".