21222134622 has 80 divisors (see below), whose sum is σ = 52595528832. Its totient is φ = 6353380800.

The previous prime is 21222134617. The next prime is 21222134657. The reversal of 21222134622 is 22643122212.

21222134622 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 2 + 1 + 34 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58254 + ... + 214097.

Almost surely, 2^21222134622 is an apocalyptic number.

21222134622 is an abundant number, since it is smaller than the sum of its proper divisors (31373394210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21222134622 is a wasteful number, since it uses less digits than its factorization.

21222134622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272415 (or 272406 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 21222134622 its reverse (22643122212), we get a palindrome (43865256834).

The spelling of 21222134622 in words is "twenty-one billion, two hundred twenty-two million, one hundred thirty-four thousand, six hundred twenty-two".