212200221102201 has 12 divisors (see below), whose sum is σ = 306511649538900. Its totient is φ = 141466712964480.

The previous prime is 212200221102187. The next prime is 212200221102209. The reversal of 212200221102201 is 102201122002212.

It is a happy number.

212200221102201 is a `hidden beast` number, since 2 + 1 + 220 + 0 + 221 + 1 + 0 + 220 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14200876244025 + 197999344858176 = 3768405^2 + 14071224^2 .

It is not a de Polignac number, because 212200221102201 - 2²⁵ = 212200187547769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212200221102209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6204325 + ... + 21514973.

It is an arithmetic number, because the mean of its divisors is an integer number (25542637461575).

Almost surely, 2^{212200221102201} is an apocalyptic number.

It is an amenable number.

212200221102201 is a deficient number, since it is larger than the sum of its proper divisors (94311428436699).

212200221102201 is a wasteful number, since it uses less digits than its factorization.

212200221102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16850616 (or 16850613 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212200221102201 its reverse (102201122002212), we get a palindrome (314401343104413).

The spelling of 212200221102201 in words is "two hundred twelve trillion, two hundred billion, two hundred twenty-one million, one hundred two thousand, two hundred one".