102412213221 has 8 divisors (see below), whose sum is σ = 138194794080. Its totient is φ = 67452220592.

The previous prime is 102412213069. The next prime is 102412213223. The reversal of 102412213221 is 122312214201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102412213221 - 2⁹ = 102412212709 is a prime.

It is a super-2 number, since 2×102412213221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102412213223) 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 7 ways as a sum of consecutive naturals, for example, 205646766 + ... + 205647263.

It is an arithmetic number, because the mean of its divisors is an integer number (17274349260).

Almost surely, 2^102412213221 is an apocalyptic number.

It is an amenable number.

102412213221 is a deficient number, since it is larger than the sum of its proper divisors (35782580859).

102412213221 is an equidigital number, since it uses as much as digits as its factorization.

102412213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411294115.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 102412213221 its reverse (122312214201), we get a palindrome (224724427422).

The spelling of 102412213221 in words is "one hundred two billion, four hundred twelve million, two hundred thirteen thousand, two hundred twenty-one".