21022212211422 has 16 divisors (see below), whose sum is σ = 43180760218512. Its totient is φ = 6818014771200.

The previous prime is 21022212211373. The next prime is 21022212211463. The reversal of 21022212211422 is 22411221222012.

It is a junction number, because it is equal to n+sod(n) for n = 21022212211392 and 21022212211401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47347324579 + ... + 47347325022.

It is an arithmetic number, because the mean of its divisors is an integer number (2698797513657).

Almost surely, 2^{21022212211422} is an apocalyptic number.

21022212211422 is an abundant number, since it is smaller than the sum of its proper divisors (22158548007090).

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

21022212211422 is a wasteful number, since it uses less digits than its factorization.

21022212211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94694649643.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 21022212211422 its reverse (22411221222012), we get a palindrome (43433433433434).

The spelling of 21022212211422 in words is "twenty-one trillion, twenty-two billion, two hundred twelve million, two hundred eleven thousand, four hundred twenty-two".