21026216062 has 8 divisors (see below), whose sum is σ = 31569918192. Its totient is φ = 10502910000.

The previous prime is 21026216059. The next prime is 21026216077. The reversal of 21026216062 is 26061262012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21026216062.

It is a congruent number.

It is an unprimeable number.

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, 5096439 + ... + 5100562.

It is an arithmetic number, because the mean of its divisors is an integer number (3946239774).

Almost surely, 2^21026216062 is an apocalyptic number.

21026216062 is a deficient number, since it is larger than the sum of its proper divisors (10543702130).

21026216062 is a wasteful number, since it uses less digits than its factorization.

21026216062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10198034.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 21026216062 its reverse (26061262012), we get a palindrome (47087478074).

The spelling of 21026216062 in words is "twenty-one billion, twenty-six million, two hundred sixteen thousand, sixty-two".