22011212211201 has 24 divisors (see below), whose sum is σ = 32006528812544. Its totient is φ = 14576097575520.

The previous prime is 22011212211167. The next prime is 22011212211203. The reversal of 22011212211201 is 10211221211022.

22011212211201 is a `hidden beast` number, since 2 + 201 + 121 + 221 + 120 + 1 = 666.

It is not a de Polignac number, because 22011212211201 - 2¹⁰ = 22011212210177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011212211203) 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, 2059296 + ... + 6947166.

Almost surely, 2^{22011212211201} is an apocalyptic number.

It is an amenable number.

22011212211201 is a deficient number, since it is larger than the sum of its proper divisors (9995316601343).

22011212211201 is a wasteful number, since it uses less digits than its factorization.

22011212211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891221 (or 4891218 counting only the distinct ones).

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

Adding to 22011212211201 its reverse (10211221211022), we get a palindrome (32222433422223).

The spelling of 22011212211201 in words is "twenty-two trillion, eleven billion, two hundred twelve million, two hundred eleven thousand, two hundred one".