221123303120210 has 16 divisors (see below), whose sum is σ = 399149486545176. Its totient is φ = 88198756597248.

The previous prime is 221123303120183. The next prime is 221123303120243. The reversal of 221123303120210 is 12021303321122.

It can be written as a sum of positive squares in 4 ways, for example, as 147433045124401 + 73690257995809 = 12142201^2 + 8584303^2 .

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, 31320577649 + ... + 31320584708.

Almost surely, 2^{221123303120210} is an apocalyptic number.

221123303120210 is a deficient number, since it is larger than the sum of its proper divisors (178026183424966).

221123303120210 is a wasteful number, since it uses less digits than its factorization.

221123303120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62641162717.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221123303120210 its reverse (12021303321122), we get a palindrome (233144606441332).

The spelling of 221123303120210 in words is "two hundred twenty-one trillion, one hundred twenty-three billion, three hundred three million, one hundred twenty thousand, two hundred ten".