102222000221 has 4 divisors (see below), whose sum is σ = 111514909344. Its totient is φ = 92929091100.

The previous prime is 102222000191. The next prime is 102222000247. The reversal of 102222000221 is 122000222201.

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 102222000221 - 2¹⁰ = 102221999197 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 = 102222000196 and 102222000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222000281) 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, 4646454545 + ... + 4646454566.

It is an arithmetic number, because the mean of its divisors is an integer number (27878727336).

Almost surely, 2^102222000221 is an apocalyptic number.

102222000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102222000221 is a deficient number, since it is larger than the sum of its proper divisors (9292909123).

102222000221 is an equidigital number, since it uses as much as digits as its factorization.

102222000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292909122.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102222000221 its reverse (122000222201), we get a palindrome (224222222422).

The spelling of 102222000221 in words is "one hundred two billion, two hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.