212422423434121 has 2 divisors, whose sum is σ = 212422423434122. Its totient is φ = 212422423434120.

The previous prime is 212422423434101. The next prime is 212422423434131. The reversal of 212422423434121 is 121434324224212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212233033968400 + 189389465721 = 14568220^2 + 435189^2 .

It is a cyclic number.

It is not a de Polignac number, because 212422423434121 - 2¹⁹ = 212422422909833 is a prime.

It is a super-4 number, since 4×212422423434121⁴ (a number of 58 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (212422423434101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106211211717060 + 106211211717061.

It is an arithmetic number, because the mean of its divisors is an integer number (106211211717061).

Almost surely, 2^{212422423434121} is an apocalyptic number.

It is an amenable number.

212422423434121 is a deficient number, since it is larger than the sum of its proper divisors (1).

212422423434121 is an equidigital number, since it uses as much as digits as its factorization.

212422423434121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 37.

Adding to 212422423434121 its reverse (121434324224212), we get a palindrome (333856747658333).

The spelling of 212422423434121 in words is "two hundred twelve trillion, four hundred twenty-two billion, four hundred twenty-three million, four hundred thirty-four thousand, one hundred twenty-one".