21142120114 has 8 divisors (see below), whose sum is σ = 31795983360. Its totient is φ = 10543458996.

The previous prime is 21142120093. The next prime is 21142120117. The reversal of 21142120114 is 41102124112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21142120091 and 21142120100.

It is not an unprimeable number, because it can be changed into a prime (21142120117) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13799574 + ... + 13801105.

It is an arithmetic number, because the mean of its divisors is an integer number (3974497920).

Almost surely, 2^21142120114 is an apocalyptic number.

21142120114 is a deficient number, since it is larger than the sum of its proper divisors (10653863246).

21142120114 is a wasteful number, since it uses less digits than its factorization.

21142120114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27601064.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21142120114 its reverse (41102124112), we get a palindrome (62244244226).

The spelling of 21142120114 in words is "twenty-one billion, one hundred forty-two million, one hundred twenty thousand, one hundred fourteen".