22000001211 has 12 divisors (see below), whose sum is σ = 31816496400. Its totient is φ = 14648798160.

The previous prime is 22000001203. The next prime is 22000001237. The reversal of 22000001211 is 11210000022.

It is not a de Polignac number, because 22000001211 - 2³ = 22000001203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22000001193 and 22000001202.

It is not an unprimeable number, because it can be changed into a prime (22000001711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1481311 + ... + 1496088.

It is an arithmetic number, because the mean of its divisors is an integer number (2651374700).

Almost surely, 2^22000001211 is an apocalyptic number.

22000001211 is a deficient number, since it is larger than the sum of its proper divisors (9816495189).

22000001211 is a wasteful number, since it uses less digits than its factorization.

22000001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978226 (or 2978223 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22000001211 its reverse (11210000022), we get a palindrome (33210001233).

The spelling of 22000001211 in words is "twenty-two billion, one thousand, two hundred eleven".