221010202211210 has 8 divisors (see below), whose sum is σ = 397818363980196. Its totient is φ = 88404080884480.

The previous prime is 221010202211209. The next prime is 221010202211231. The reversal of 221010202211210 is 12112202010122.

It can be written as a sum of positive squares in 2 ways, for example, as 214847788189969 + 6162414021241 = 14657687^2 + 2482421^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11050510110551 + ... + 11050510110570.

Almost surely, 2^{221010202211210} is an apocalyptic number.

221010202211210 is a deficient number, since it is larger than the sum of its proper divisors (176808161768986).

221010202211210 is a wasteful number, since it uses less digits than its factorization.

221010202211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101020221128.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221010202211210 its reverse (12112202010122), we get a palindrome (233122404221332).

The spelling of 221010202211210 in words is "two hundred twenty-one trillion, ten billion, two hundred two million, two hundred eleven thousand, two hundred ten".