21122344143422 has 96 divisors (see below), whose sum is σ = 35588987280000. Its totient is φ = 9374162434560.

The previous prime is 21122344143323. The next prime is 21122344143449. The reversal of 21122344143422 is 22434144322112.

It is a super-2 number, since 2×21122344143422² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2259311204 + ... + 2259320552.

It is an arithmetic number, because the mean of its divisors is an integer number (370718617500).

Almost surely, 2^{21122344143422} is an apocalyptic number.

21122344143422 is a deficient number, since it is larger than the sum of its proper divisors (14466643136578).

21122344143422 is a wasteful number, since it uses less digits than its factorization.

21122344143422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314 (or 10297 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 21122344143422 its reverse (22434144322112), we get a palindrome (43556488465534).

The spelling of 21122344143422 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred forty-four million, one hundred forty-three thousand, four hundred twenty-two".