102200012221 has 4 divisors (see below), whose sum is σ = 102228539392. Its totient is φ = 102171485052.

The previous prime is 102200012177. The next prime is 102200012249. The reversal of 102200012221 is 122210002201.

It is a happy number.

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 102200012221 - 2⁹ = 102200011709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200012251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14258211 + ... + 14265376.

It is an arithmetic number, because the mean of its divisors is an integer number (25557134848).

Almost surely, 2^102200012221 is an apocalyptic number.

It is an amenable number.

102200012221 is a deficient number, since it is larger than the sum of its proper divisors (28527171).

102200012221 is an equidigital number, since it uses as much as digits as its factorization.

102200012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28527170.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102200012221 its reverse (122210002201), we get a palindrome (224410014422).

The spelling of 102200012221 in words is "one hundred two billion, two hundred million, twelve thousand, two hundred twenty-one".