1222133211 has 32 divisors (see below), whose sum is σ = 1952677440. Its totient is φ = 750988800.

The previous prime is 1222133203. The next prime is 1222133233. The reversal of 1222133211 is 1123312221.

It is not a de Polignac number, because 1222133211 - 2³ = 1222133203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222133291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286051 + ... + 290291.

It is an arithmetic number, because the mean of its divisors is an integer number (61021170).

Almost surely, 2^1222133211 is an apocalyptic number.

1222133211 is a deficient number, since it is larger than the sum of its proper divisors (730544229).

1222133211 is a wasteful number, since it uses less digits than its factorization.

1222133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084 (or 5078 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1222133211 is about 34959.0218827701. The cubic root of 1222133211 is about 1069.1521542275.

Adding to 1222133211 its reverse (1123312221), we get a palindrome (2345445432).

The spelling of 1222133211 in words is "one billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred eleven".