211322224421 has 32 divisors (see below), whose sum is σ = 269895106560. Its totient is φ = 160691428800.

The previous prime is 211322224397. The next prime is 211322224429. The reversal of 211322224421 is 124422223112.

It is a happy number.

It is not a de Polignac number, because 211322224421 - 2¹⁴ = 211322208037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211322224429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419390 + ... + 773648.

It is an arithmetic number, because the mean of its divisors is an integer number (8434222080).

Almost surely, 2^211322224421 is an apocalyptic number.

It is an amenable number.

211322224421 is a deficient number, since it is larger than the sum of its proper divisors (58572882139).

211322224421 is a wasteful number, since it uses less digits than its factorization.

211322224421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354465.

The product of its digits is 3072, while the sum is 26.

Adding to 211322224421 its reverse (124422223112), we get a palindrome (335744447533).

The spelling of 211322224421 in words is "two hundred eleven billion, three hundred twenty-two million, two hundred twenty-four thousand, four hundred twenty-one".