22131210211 has 8 divisors (see below), whose sum is σ = 24656822784. Its totient is φ = 19691211720.

The previous prime is 22131210197. The next prime is 22131210223. The reversal of 22131210211 is 11201213122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22131210211 - 2⁷ = 22131210083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22131210271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21402975 + ... + 21404008.

It is an arithmetic number, because the mean of its divisors is an integer number (3082102848).

Almost surely, 2^22131210211 is an apocalyptic number.

22131210211 is a deficient number, since it is larger than the sum of its proper divisors (2525612573).

22131210211 is a wasteful number, since it uses less digits than its factorization.

22131210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42807041.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 22131210211 its reverse (11201213122), we get a palindrome (33332423333).

The spelling of 22131210211 in words is "twenty-two billion, one hundred thirty-one million, two hundred ten thousand, two hundred eleven".