102121220222 has 8 divisors (see below), whose sum is σ = 175064948976. Its totient is φ = 43766237232.

The previous prime is 102121220221. The next prime is 102121220323. The reversal of 102121220222 is 222022121201.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 102121220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121220221) 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, 3647186423 + ... + 3647186450.

It is an arithmetic number, because the mean of its divisors is an integer number (21883118622).

Almost surely, 2^102121220222 is an apocalyptic number.

102121220222 is a deficient number, since it is larger than the sum of its proper divisors (72943728754).

102121220222 is an equidigital number, since it uses as much as digits as its factorization.

102121220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294372882.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102121220222 its reverse (222022121201), we get a palindrome (324143341423).

The spelling of 102121220222 in words is "one hundred two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".