102000221222221 has 4 divisors (see below), whose sum is σ = 116571681396832. Its totient is φ = 87428761047612.

The previous prime is 102000221222171. The next prime is 102000221222239. The reversal of 102000221222221 is 122222122000201.

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 102000221222221 - 2⁷ = 102000221222093 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 (102000225222221) 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, 7285730087295 + ... + 7285730087308.

It is an arithmetic number, because the mean of its divisors is an integer number (29142920349208).

Almost surely, 2^{102000221222221} is an apocalyptic number.

It is an amenable number.

102000221222221 is a deficient number, since it is larger than the sum of its proper divisors (14571460174611).

102000221222221 is an equidigital number, since it uses as much as digits as its factorization.

102000221222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571460174610.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102000221222221 its reverse (122222122000201), we get a palindrome (224222343222422).

The spelling of 102000221222221 in words is "one hundred two trillion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-one".