1222202211 has 8 divisors (see below), whose sum is σ = 1629864960. Its totient is φ = 814670472.

The previous prime is 1222202209. The next prime is 1222202213. The reversal of 1222202211 is 1122022221.

It is an interprime number because it is at equal distance from previous prime (1222202209) and next prime (1222202213).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222202211 - 2¹ = 1222202209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222202213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8395 + ... + 50148.

It is an arithmetic number, because the mean of its divisors is an integer number (203733120).

Almost surely, 2^1222202211 is an apocalyptic number.

1222202211 is a deficient number, since it is larger than the sum of its proper divisors (407662749).

1222202211 is an equidigital number, since it uses as much as digits as its factorization.

1222202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65505.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222202211 is about 34960.0087385573. The cubic root of 1222202211 is about 1069.1722748138.

Adding to 1222202211 its reverse (1122022221), we get a palindrome (2344224432).

The spelling of 1222202211 in words is "one billion, two hundred twenty-two million, two hundred two thousand, two hundred eleven".