22200121212211 has 4 divisors (see below), whose sum is σ = 22201039773400. Its totient is φ = 22199202651024.

The previous prime is 22200121212193. The next prime is 22200121212221. The reversal of 22200121212211 is 11221212100222.

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 22200121212211 - 2⁵ = 22200121212179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22200121212221) 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, 459244341 + ... + 459292678.

It is an arithmetic number, because the mean of its divisors is an integer number (5550259943350).

Almost surely, 2^{22200121212211} is an apocalyptic number.

22200121212211 is a deficient number, since it is larger than the sum of its proper divisors (918561189).

22200121212211 is an equidigital number, since it uses as much as digits as its factorization.

22200121212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918561188.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22200121212211 its reverse (11221212100222), we get a palindrome (33421333312433).

The spelling of 22200121212211 in words is "twenty-two trillion, two hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".