212222022193837 has 2 divisors, whose sum is σ = 212222022193838. Its totient is φ = 212222022193836.

The previous prime is 212222022193793. The next prime is 212222022193877. The reversal of 212222022193837 is 738391220222212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187060903434441 + 25161118759396 = 13677021^2 + 5016086^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222022193837 - 2¹⁵ = 212222022161069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212222022193877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111011096918 + 106111011096919.

It is an arithmetic number, because the mean of its divisors is an integer number (106111011096919).

Almost surely, 2^{212222022193837} is an apocalyptic number.

It is an amenable number.

212222022193837 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222022193837 is an equidigital number, since it uses as much as digits as its factorization.

212222022193837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 212222022193837 in words is "two hundred twelve trillion, two hundred twenty-two billion, twenty-two million, one hundred ninety-three thousand, eight hundred thirty-seven".