1222040211 has 16 divisors (see below), whose sum is σ = 1862873088. Its totient is φ = 698040000.

The previous prime is 1222040203. The next prime is 1222040227. The reversal of 1222040211 is 1120402221.

It is not a de Polignac number, because 1222040211 - 2³ = 1222040203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222040111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53326 + ... + 72716.

It is an arithmetic number, because the mean of its divisors is an integer number (116429568).

Almost surely, 2^1222040211 is an apocalyptic number.

1222040211 is a deficient number, since it is larger than the sum of its proper divisors (640832877).

1222040211 is a wasteful number, since it uses less digits than its factorization.

1222040211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22402.

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

The square root of 1222040211 is about 34957.6917287169. The cubic root of 1222040211 is about 1069.1250339781.

Adding to 1222040211 its reverse (1120402221), we get a palindrome (2342442432).

The spelling of 1222040211 in words is "one billion, two hundred twenty-two million, forty thousand, two hundred eleven".