1222001371 has 2 divisors, whose sum is σ = 1222001372. Its totient is φ = 1222001370.

The previous prime is 1222001267. The next prime is 1222001381. The reversal of 1222001371 is 1731002221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222001371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222001381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611000685 + 611000686.

It is an arithmetic number, because the mean of its divisors is an integer number (611000686).

Almost surely, 2^1222001371 is an apocalyptic number.

1222001371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222001371 is an equidigital number, since it uses as much as digits as its factorization.

1222001371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1222001371 is about 34957.1361956325. The cubic root of 1222001371 is about 1069.1137072214.

Adding to 1222001371 its reverse (1731002221), we get a palindrome (2953003592).

The spelling of 1222001371 in words is "one billion, two hundred twenty-two million, one thousand, three hundred seventy-one".