102021212222 has 8 divisors (see below), whose sum is σ = 155187196272. Its totient is φ = 50292146800.

The previous prime is 102021212221. The next prime is 102021212303. The reversal of 102021212222 is 222212120201.

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 102021212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359229479 + ... + 359229762.

It is an arithmetic number, because the mean of its divisors is an integer number (19398399534).

Almost surely, 2^102021212222 is an apocalyptic number.

102021212222 is a deficient number, since it is larger than the sum of its proper divisors (53165984050).

102021212222 is an equidigital number, since it uses as much as digits as its factorization.

102021212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718459314.

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

Adding to 102021212222 its reverse (222212120201), we get a palindrome (324233332423).

The spelling of 102021212222 in words is "one hundred two billion, twenty-one million, two hundred twelve thousand, two hundred twenty-two".