222221121201941 has 2 divisors, whose sum is σ = 222221121201942. Its totient is φ = 222221121201940.

The previous prime is 222221121201851. The next prime is 222221121202111. The reversal of 222221121201941 is 149102121122222.

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., 220063013299441 + 2158107902500 = 14834521^2 + 1469050^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221121201941 - 2¹⁰ = 222221121200917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222221121201898 and 222221121201907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222221121201841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110560600970 + 111110560600971.

It is an arithmetic number, because the mean of its divisors is an integer number (111110560600971).

Almost surely, 2^{222221121201941} is an apocalyptic number.

It is an amenable number.

222221121201941 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221121201941 is an equidigital number, since it uses as much as digits as its factorization.

222221121201941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 222221121201941 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred one thousand, nine hundred forty-one".