22212012061 has 2 divisors, whose sum is σ = 22212012062. Its totient is φ = 22212012060.

The previous prime is 22212012007. The next prime is 22212012101. The reversal of 22212012061 is 16021021222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12994860025 + 9217152036 = 113995^2 + 96006^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212012061 - 2¹¹ = 22212010013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212012961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106006030 + 11106006031.

It is an arithmetic number, because the mean of its divisors is an integer number (11106006031).

Almost surely, 2^22212012061 is an apocalyptic number.

It is an amenable number.

22212012061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212012061 is an equidigital number, since it uses as much as digits as its factorization.

22212012061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22212012061 its reverse (16021021222), we get a palindrome (38233033283).

The spelling of 22212012061 in words is "twenty-two billion, two hundred twelve million, twelve thousand, sixty-one".