21414421034 has 8 divisors (see below), whose sum is σ = 32130459840. Its totient is φ = 10704267756.

The previous prime is 21414421033. The next prime is 21414421109. The reversal of 21414421034 is 43012441412.

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 = 21414420994 and 21414421012.

It is not an unprimeable number, because it can be changed into a prime (21414421033) 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, 1462274 + ... + 1476845.

It is an arithmetic number, because the mean of its divisors is an integer number (4016307480).

Almost surely, 2^21414421034 is an apocalyptic number.

21414421034 is a deficient number, since it is larger than the sum of its proper divisors (10716038806).

21414421034 is a wasteful number, since it uses less digits than its factorization.

21414421034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942764.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21414421034 its reverse (43012441412), we get a palindrome (64426862446).

The spelling of 21414421034 in words is "twenty-one billion, four hundred fourteen million, four hundred twenty-one thousand, thirty-four".