1222659211 has 2 divisors, whose sum is σ = 1222659212. Its totient is φ = 1222659210.

The previous prime is 1222659203. The next prime is 1222659233. The reversal of 1222659211 is 1129562221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222659211 - 2³ = 1222659203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222659241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611329605 + 611329606.

It is an arithmetic number, because the mean of its divisors is an integer number (611329606).

Almost surely, 2^1222659211 is an apocalyptic number.

1222659211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222659211 is an equidigital number, since it uses as much as digits as its factorization.

1222659211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 1222659211 is about 34966.5441672465. The cubic root of 1222659211 is about 1069.3055181342.

The spelling of 1222659211 in words is "one billion, two hundred twenty-two million, six hundred fifty-nine thousand, two hundred eleven".