211222221179353 has 2 divisors, whose sum is σ = 211222221179354. Its totient is φ = 211222221179352.

The previous prime is 211222221179243. The next prime is 211222221179393. The reversal of 211222221179353 is 353971122222112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178340747207184 + 32881473972169 = 13354428^2 + 5734237^2 .

It is a cyclic number.

It is not a de Polignac number, because 211222221179353 - 2¹⁷ = 211222221048281 is a prime.

It is a super-2 number, since 2×211222221179353² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211222221179393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611110589676 + 105611110589677.

It is an arithmetic number, because the mean of its divisors is an integer number (105611110589677).

Almost surely, 2^{211222221179353} is an apocalyptic number.

It is an amenable number.

211222221179353 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222221179353 is an equidigital number, since it uses as much as digits as its factorization.

211222221179353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The spelling of 211222221179353 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred seventy-nine thousand, three hundred fifty-three".