211422224421 has 12 divisors (see below), whose sum is σ = 318665382048. Its totient is φ = 134819969064.

The previous prime is 211422224413. The next prime is 211422224423. The reversal of 211422224421 is 124422224112.

211422224421 is a `hidden beast` number, since 2 + 1 + 14 + 2 + 2 + 224 + 421 = 666.

It is not a de Polignac number, because 211422224421 - 2³ = 211422224413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211422224423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510681495 + ... + 510681908.

It is an arithmetic number, because the mean of its divisors is an integer number (26555448504).

Almost surely, 2^211422224421 is an apocalyptic number.

It is an amenable number.

211422224421 is a deficient number, since it is larger than the sum of its proper divisors (107243157627).

211422224421 is a wasteful number, since it uses less digits than its factorization.

211422224421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021363432 (or 1021363429 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

Adding to 211422224421 its reverse (124422224112), we get a palindrome (335844448533).

The spelling of 211422224421 in words is "two hundred eleven billion, four hundred twenty-two million, two hundred twenty-four thousand, four hundred twenty-one".