222000212101 has 2 divisors, whose sum is σ = 222000212102. Its totient is φ = 222000212100.

The previous prime is 222000212039. The next prime is 222000212173. The reversal of 222000212101 is 101212000222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130157879076 + 91842333025 = 360774^2 + 303055^2 .

It is a cyclic number.

It is not a de Polignac number, because 222000212101 - 2¹⁵ = 222000179333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222000212501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000106050 + 111000106051.

It is an arithmetic number, because the mean of its divisors is an integer number (111000106051).

Almost surely, 2^222000212101 is an apocalyptic number.

It is an amenable number.

222000212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000212101 is an equidigital number, since it uses as much as digits as its factorization.

222000212101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222000212101 its reverse (101212000222), we get a palindrome (323212212323).

The spelling of 222000212101 in words is "two hundred twenty-two billion, two hundred twelve thousand, one hundred one".