201110221121210 has 32 divisors (see below), whose sum is σ = 383293142290512. Its totient is φ = 75711940853760.

The previous prime is 201110221121209. The next prime is 201110221121239. The reversal of 201110221121210 is 12121122011102.

It can be written as a sum of positive squares in 8 ways, for example, as 174331593633961 + 26778627487249 = 13203469^2 + 5174807^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148749050 + ... + 150094970.

Almost surely, 2^{201110221121210} is an apocalyptic number.

201110221121210 is a deficient number, since it is larger than the sum of its proper divisors (182182921169302).

201110221121210 is a wasteful number, since it uses less digits than its factorization.

201110221121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224898.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201110221121210 its reverse (12121122011102), we get a palindrome (213231343132312).

The spelling of 201110221121210 in words is "two hundred one trillion, one hundred ten billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred ten".