212222011122137 has 2 divisors, whose sum is σ = 212222011122138. Its totient is φ = 212222011122136.

The previous prime is 212222011122119. The next prime is 212222011122229. The reversal of 212222011122137 is 731221110222212.

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., 207879271884361 + 4342739237776 = 14418019^2 + 2083924^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222011122137 - 2³⁸ = 211947133215193 is a prime.

It is not a weakly prime, because it can be changed into another prime (212222011122937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111005561068 + 106111005561069.

It is an arithmetic number, because the mean of its divisors is an integer number (106111005561069).

Almost surely, 2^{212222011122137} is an apocalyptic number.

It is an amenable number.

212222011122137 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222011122137 is an equidigital number, since it uses as much as digits as its factorization.

212222011122137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 212222011122137 its reverse (731221110222212), we get a palindrome (943443121344349).

The spelling of 212222011122137 in words is "two hundred twelve trillion, two hundred twenty-two billion, eleven million, one hundred twenty-two thousand, one hundred thirty-seven".