102201010221 has 4 divisors (see below), whose sum is σ = 136268013632. Its totient is φ = 68134006812.

The previous prime is 102201010207. The next prime is 102201010231. The reversal of 102201010221 is 122010102201.

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 not a de Polignac number, because 102201010221 - 2¹⁵ = 102200977453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102201010197 and 102201010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201010201) 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, 17033501701 + ... + 17033501706.

It is an arithmetic number, because the mean of its divisors is an integer number (34067003408).

Almost surely, 2^102201010221 is an apocalyptic number.

It is an amenable number.

102201010221 is a deficient number, since it is larger than the sum of its proper divisors (34067003411).

102201010221 is an equidigital number, since it uses as much as digits as its factorization.

102201010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34067003410.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102201010221 its reverse (122010102201), we get a palindrome (224211112422).

The spelling of 102201010221 in words is "one hundred two billion, two hundred one million, ten thousand, two hundred twenty-one".