21060751210 has 16 divisors (see below), whose sum is σ = 39904581600. Its totient is φ = 7980916176.

The previous prime is 21060751199. The next prime is 21060751211. The reversal of 21060751210 is 1215706012.

It is not an unprimeable number, because it can be changed into a prime (21060751211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55422840 + ... + 55423219.

It is an arithmetic number, because the mean of its divisors is an integer number (2494036350).

Almost surely, 2^21060751210 is an apocalyptic number.

21060751210 is a deficient number, since it is larger than the sum of its proper divisors (18843830390).

21060751210 is a wasteful number, since it uses less digits than its factorization.

21060751210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110846085.

The product of its (nonzero) digits is 840, while the sum is 25.

The spelling of 21060751210 in words is "twenty-one billion, sixty million, seven hundred fifty-one thousand, two hundred ten".