22012211211201 has 12 divisors (see below), whose sum is σ = 32008808250900. Its totient is φ = 14576318832480.

The previous prime is 22012211211197. The next prime is 22012211211209. The reversal of 22012211211201 is 10211211221022.

22012211211201 is a `hidden beast` number, since 2 + 201 + 221 + 121 + 120 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6717033292176 + 15295177919025 = 2591724^2 + 3910905^2 .

It is not a de Polignac number, because 22012211211201 - 2² = 22012211211197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012211211209) 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, 8207385390 + ... + 8207388071.

It is an arithmetic number, because the mean of its divisors is an integer number (2667400687575).

Almost surely, 2^{22012211211201} is an apocalyptic number.

It is an amenable number.

22012211211201 is a deficient number, since it is larger than the sum of its proper divisors (9996597039699).

22012211211201 is a wasteful number, since it uses less digits than its factorization.

22012211211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16414773616 (or 16414773613 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22012211211201 its reverse (10211211221022), we get a palindrome (32223422432223).

The spelling of 22012211211201 in words is "twenty-two trillion, twelve billion, two hundred eleven million, two hundred eleven thousand, two hundred one".