1222001200291 has 2 divisors, whose sum is σ = 1222001200292. Its totient is φ = 1222001200290.

The previous prime is 1222001200289. The next prime is 1222001200349. The reversal of 1222001200291 is 1920021002221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222001200291 - 2¹ = 1222001200289 is a prime.

Together with 1222001200289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1222001206291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611000600145 + 611000600146.

It is an arithmetic number, because the mean of its divisors is an integer number (611000600146).

Almost surely, 2^{1222001200291} is an apocalyptic number.

1222001200291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222001200291 is an equidigital number, since it uses as much as digits as its factorization.

1222001200291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1222001200291 in words is "one trillion, two hundred twenty-two billion, one million, two hundred thousand, two hundred ninety-one".