221210102210 has 16 divisors (see below), whose sum is σ = 400065288192. Its totient is φ = 88064684400.

The previous prime is 221210102147. The next prime is 221210102293. The reversal of 221210102210 is 12201012122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52417346 + ... + 52421565.

It is an arithmetic number, because the mean of its divisors is an integer number (25004080512).

Almost surely, 2^221210102210 is an apocalyptic number.

221210102210 is a deficient number, since it is larger than the sum of its proper divisors (178855185982).

221210102210 is a wasteful number, since it uses less digits than its factorization.

221210102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104839129.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221210102210 its reverse (12201012122), we get a palindrome (233411114332).

The spelling of 221210102210 in words is "two hundred twenty-one billion, two hundred ten million, one hundred two thousand, two hundred ten".