21142411422 has 64 divisors (see below), whose sum is σ = 46630176768. Its totient is φ = 6337548000.

The previous prime is 21142411331. The next prime is 21142411447. The reversal of 21142411422 is 22411424112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21142411392 and 21142411401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2321097 + ... + 2330187.

It is an arithmetic number, because the mean of its divisors is an integer number (728596512).

Almost surely, 2^21142411422 is an apocalyptic number.

21142411422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21142411422 is an abundant number, since it is smaller than the sum of its proper divisors (25487765346).

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

21142411422 is a wasteful number, since it uses less digits than its factorization.

21142411422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485.

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

Adding to 21142411422 its reverse (22411424112), we get a palindrome (43553835534).

The spelling of 21142411422 in words is "twenty-one billion, one hundred forty-two million, four hundred eleven thousand, four hundred twenty-two".