212200011200221 has 16 divisors (see below), whose sum is σ = 247038018877440. Its totient is φ = 180131888724480.

The previous prime is 212200011200197. The next prime is 212200011200257. The reversal of 212200011200221 is 122002110002212.

It is a happy number.

It is not a de Polignac number, because 212200011200221 - 2¹¹ = 212200011198173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212200011200195 and 212200011200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200011200321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4467533016 + ... + 4467580513.

It is an arithmetic number, because the mean of its divisors is an integer number (15439876179840).

Almost surely, 2^{212200011200221} is an apocalyptic number.

It is an amenable number.

212200011200221 is a deficient number, since it is larger than the sum of its proper divisors (34838007677219).

212200011200221 is a wasteful number, since it uses less digits than its factorization.

212200011200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8935113684.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212200011200221 its reverse (122002110002212), we get a palindrome (334202121202433).

The spelling of 212200011200221 in words is "two hundred twelve trillion, two hundred billion, eleven million, two hundred thousand, two hundred twenty-one".