1222323211 has 8 divisors (see below), whose sum is σ = 1267739648. Its totient is φ = 1177281000.

The previous prime is 1222323209. The next prime is 1222323229. The reversal of 1222323211 is 1123232221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222323211 - 2¹ = 1222323209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222321211) 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, 86895 + ... + 99976.

It is an arithmetic number, because the mean of its divisors is an integer number (158467456).

Almost surely, 2^1222323211 is an apocalyptic number.

1222323211 is a deficient number, since it is larger than the sum of its proper divisors (45416437).

1222323211 is a wasteful number, since it uses less digits than its factorization.

1222323211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187113.

The product of its digits is 288, while the sum is 19.

The square root of 1222323211 is about 34961.7392444941. The cubic root of 1222323211 is about 1069.2075569123.

Adding to 1222323211 its reverse (1123232221), we get a palindrome (2345555432).

The spelling of 1222323211 in words is "one billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred eleven".