102222221210 has 8 divisors (see below), whose sum is σ = 183999998196. Its totient is φ = 40888888480.

The previous prime is 102222221207. The next prime is 102222221261. The reversal of 102222221210 is 12122222201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101269696441 + 952524769 = 318229^2 + 30863^2 .

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

It is a Curzon number.

It is an unprimeable number.

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, 5111111051 + ... + 5111111070.

Almost surely, 2^102222221210 is an apocalyptic number.

102222221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102222221210 is a deficient number, since it is larger than the sum of its proper divisors (81777776986).

102222221210 is a wasteful number, since it uses less digits than its factorization.

102222221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222222128.

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

Adding to 102222221210 its reverse (12122222201), we get a palindrome (114344443411).

Subtracting from 102222221210 its reverse (12122222201), we obtain a palindrome (90099999009).

The spelling of 102222221210 in words is "one hundred two billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred ten".