21300022010 has 128 divisors (see below), whose sum is σ = 42018393600. Its totient is φ = 7749181440.

The previous prime is 21300022001. The next prime is 21300022031. The reversal of 21300022010 is 1022000312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21300021982 and 21300022000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135668852 + ... + 135669008.

It is an arithmetic number, because the mean of its divisors is an integer number (328268700).

Almost surely, 2^21300022010 is an apocalyptic number.

21300022010 is a deficient number, since it is larger than the sum of its proper divisors (20718371590).

21300022010 is a wasteful number, since it uses less digits than its factorization.

21300022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21300022010 its reverse (1022000312), we get a palindrome (22322022322).

The spelling of 21300022010 in words is "twenty-one billion, three hundred million, twenty-two thousand, ten".