102000222221 has 4 divisors (see below), whose sum is σ = 102024266112. Its totient is φ = 101976178332.

The previous prime is 102000222217. The next prime is 102000222227. The reversal of 102000222221 is 122222000201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122222000201 = 7 ⋅17460285743.

It is a cyclic number.

It is not a de Polignac number, because 102000222221 - 2² = 102000222217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102000222196 and 102000222205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000222227) 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, 12015581 + ... + 12024066.

It is an arithmetic number, because the mean of its divisors is an integer number (25506066528).

Almost surely, 2^102000222221 is an apocalyptic number.

It is an amenable number.

102000222221 is a deficient number, since it is larger than the sum of its proper divisors (24043891).

102000222221 is an equidigital number, since it uses as much as digits as its factorization.

102000222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24043890.

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

Adding to 102000222221 its reverse (122222000201), we get a palindrome (224222222422).

The spelling of 102000222221 in words is "one hundred two billion, two hundred twenty-two thousand, two hundred twenty-one".