22200020121211 has 4 divisors (see below), whose sum is σ = 22201006767424. Its totient is φ = 22199033475000.

The previous prime is 22200020121131. The next prime is 22200020121239. The reversal of 22200020121211 is 11212102000222.

It is a happy number.

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 22200020121211 - 2¹¹ = 22200020119163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22200020121271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493289355 + ... + 493334356.

It is an arithmetic number, because the mean of its divisors is an integer number (5550251691856).

Almost surely, 2^{22200020121211} is an apocalyptic number.

22200020121211 is a deficient number, since it is larger than the sum of its proper divisors (986646213).

22200020121211 is an equidigital number, since it uses as much as digits as its factorization.

22200020121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986646212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22200020121211 its reverse (11212102000222), we get a palindrome (33412122121433).

The spelling of 22200020121211 in words is "twenty-two trillion, two hundred billion, twenty million, one hundred twenty-one thousand, two hundred eleven".