21142124414 has 8 divisors (see below), whose sum is σ = 31733664600. Its totient is φ = 10564236216.

The previous prime is 21142124413. The next prime is 21142124449. The reversal of 21142124414 is 41442124112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142124413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409124 + ... + 3415319.

It is an arithmetic number, because the mean of its divisors is an integer number (3966708075).

Almost surely, 2^21142124414 is an apocalyptic number.

21142124414 is a deficient number, since it is larger than the sum of its proper divisors (10591540186).

21142124414 is a wasteful number, since it uses less digits than its factorization.

21142124414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6825994.

The product of its digits is 2048, while the sum is 26.

Adding to 21142124414 its reverse (41442124112), we get a palindrome (62584248526).

The spelling of 21142124414 in words is "twenty-one billion, one hundred forty-two million, one hundred twenty-four thousand, four hundred fourteen".