21210210062 has 16 divisors (see below), whose sum is σ = 32130872640. Its totient is φ = 10500118272.

The previous prime is 21210210059. The next prime is 21210210067. The reversal of 21210210062 is 26001201212.

It is a self number, because there is not a number n which added to its sum of digits gives 21210210062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210210067) 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 7 ways as a sum of consecutive naturals, for example, 166139 + ... + 264617.

It is an arithmetic number, because the mean of its divisors is an integer number (2008179540).

Almost surely, 2^21210210062 is an apocalyptic number.

21210210062 is a deficient number, since it is larger than the sum of its proper divisors (10920662578).

21210210062 is a wasteful number, since it uses less digits than its factorization.

21210210062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99547.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21210210062 its reverse (26001201212), we get a palindrome (47211411274).

The spelling of 21210210062 in words is "twenty-one billion, two hundred ten million, two hundred ten thousand, sixty-two".