21211003010 has 32 divisors (see below), whose sum is σ = 38622623472. Its totient is φ = 8386560000.

The previous prime is 21211003007. The next prime is 21211003067. The reversal of 21211003010 is 1030011212.

It can be written as a sum of positive squares in 8 ways, for example, as 8362553809 + 12848449201 = 91447^2 + 113351^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21211002982 and 21211003000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268010 + ... + 338010.

Almost surely, 2^21211003010 is an apocalyptic number.

21211003010 is a deficient number, since it is larger than the sum of its proper divisors (17411620462).

21211003010 is a wasteful number, since it uses less digits than its factorization.

21211003010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70358.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21211003010 its reverse (1030011212), we get a palindrome (22241014222).

The spelling of 21211003010 in words is "twenty-one billion, two hundred eleven million, three thousand, ten".