221129790341 has 2 divisors, whose sum is σ = 221129790342. Its totient is φ = 221129790340.

The previous prime is 221129790313. The next prime is 221129790347. The reversal of 221129790341 is 143097921122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209777740225 + 11352050116 = 458015^2 + 106546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221129790341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221129790347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110564895170 + 110564895171.

It is an arithmetic number, because the mean of its divisors is an integer number (110564895171).

Almost surely, 2^221129790341 is an apocalyptic number.

It is an amenable number.

221129790341 is a deficient number, since it is larger than the sum of its proper divisors (1).

221129790341 is an equidigital number, since it uses as much as digits as its factorization.

221129790341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 221129790341 in words is "two hundred twenty-one billion, one hundred twenty-nine million, seven hundred ninety thousand, three hundred forty-one".