22012022211 has 4 divisors (see below), whose sum is σ = 29349362952. Its totient is φ = 14674681472.

The previous prime is 22012022167. The next prime is 22012022213. The reversal of 22012022211 is 11222021022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22012022211 - 2²⁵ = 21978467779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012022213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668670366 + ... + 3668670371.

It is an arithmetic number, because the mean of its divisors is an integer number (7337340738).

Almost surely, 2^22012022211 is an apocalyptic number.

22012022211 is a deficient number, since it is larger than the sum of its proper divisors (7337340741).

22012022211 is an equidigital number, since it uses as much as digits as its factorization.

22012022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337340740.

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

Adding to 22012022211 its reverse (11222021022), we get a palindrome (33234043233).

The spelling of 22012022211 in words is "twenty-two billion, twelve million, twenty-two thousand, two hundred eleven".