21414421402142 has 8 divisors (see below), whose sum is σ = 32121886953000. Its totient is φ = 10707125751144.

The previous prime is 21414421402081. The next prime is 21414421402169. The reversal of 21414421402142 is 24120412441412.

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 = 21414421402099 and 21414421402108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42159392 + ... + 42664307.

It is an arithmetic number, because the mean of its divisors is an integer number (4015235869125).

Almost surely, 2^{21414421402142} is an apocalyptic number.

21414421402142 is a deficient number, since it is larger than the sum of its proper divisors (10707465550858).

21414421402142 is a wasteful number, since it uses less digits than its factorization.

21414421402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84949930.

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 21414421402142 its reverse (24120412441412), we get a palindrome (45534833843554).

The spelling of 21414421402142 in words is "twenty-one trillion, four hundred fourteen billion, four hundred twenty-one million, four hundred two thousand, one hundred forty-two".