212201100111010 has 16 divisors (see below), whose sum is σ = 385899732574776. Its totient is φ = 84005383961088.

The previous prime is 212201100110999. The next prime is 212201100111023. The reversal of 212201100111010 is 10111001102212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 187445589419929 + 24755510691081 = 13691077^2 + 4975491^2 .

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, 109382009397 + ... + 109382011336.

Almost surely, 2^{212201100111010} is an apocalyptic number.

212201100111010 is a deficient number, since it is larger than the sum of its proper divisors (173698632463766).

212201100111010 is a wasteful number, since it uses less digits than its factorization.

212201100111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218764020837.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212201100111010 its reverse (10111001102212), we get a palindrome (222312101213222).

The spelling of 212201100111010 in words is "two hundred twelve trillion, two hundred one billion, one hundred million, one hundred eleven thousand, ten".