22222202211 has 24 divisors (see below), whose sum is σ = 35761849344. Its totient is φ = 13181445360.

The previous prime is 22222202209. The next prime is 22222202251. The reversal of 22222202211 is 11220222222.

22222202211 is a `hidden beast` number, since 2 + 222 + 220 + 221 + 1 = 666.

It is not a de Polignac number, because 22222202211 - 2¹ = 22222202209 is a prime.

It is a super-2 number, since 2×22222202211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22222202201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2383291 + ... + 2392596.

It is an arithmetic number, because the mean of its divisors is an integer number (1490077056).

Almost surely, 2^22222202211 is an apocalyptic number.

22222202211 is a deficient number, since it is larger than the sum of its proper divisors (13539647133).

22222202211 is a wasteful number, since it uses less digits than its factorization.

22222202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775951 (or 4775948 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22222202211 its reverse (11220222222), we get a palindrome (33442424433).

The spelling of 22222202211 in words is "twenty-two billion, two hundred twenty-two million, two hundred two thousand, two hundred eleven".