2211201222 has 32 divisors (see below), whose sum is σ = 4594618080. Its totient is φ = 708583680.

The previous prime is 2211201221. The next prime is 2211201227. The reversal of 2211201222 is 2221021122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211201221) 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, 13272 + ... + 67812.

It is an arithmetic number, because the mean of its divisors is an integer number (143581815).

Almost surely, 2^2211201222 is an apocalyptic number.

2211201222 is an abundant number, since it is smaller than the sum of its proper divisors (2383416858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211201222 is a wasteful number, since it uses less digits than its factorization.

2211201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54808.

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

The square root of 2211201222 is about 47023.4114245234. The cubic root of 2211201222 is about 1302.7950163533.

Adding to 2211201222 its reverse (2221021122), we get a palindrome (4432222344).

The spelling of 2211201222 in words is "two billion, two hundred eleven million, two hundred one thousand, two hundred twenty-two".