212221244410061 has 2 divisors, whose sum is σ = 212221244410062. Its totient is φ = 212221244410060.

The previous prime is 212221244409991. The next prime is 212221244410099. The reversal of 212221244410061 is 160014442122212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207663403701961 + 4557840708100 = 14410531^2 + 2134910^2 .

It is a cyclic number.

It is not a de Polignac number, because 212221244410061 - 2¹⁴ = 212221244393677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212221244410661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110622205030 + 106110622205031.

It is an arithmetic number, because the mean of its divisors is an integer number (106110622205031).

Almost surely, 2^{212221244410061} is an apocalyptic number.

It is an amenable number.

212221244410061 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221244410061 is an equidigital number, since it uses as much as digits as its factorization.

212221244410061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 212221244410061 its reverse (160014442122212), we get a palindrome (372235686532273).

The spelling of 212221244410061 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred forty-four million, four hundred ten thousand, sixty-one".