21151305010 has 32 divisors (see below), whose sum is σ = 41542699392. Its totient is φ = 7689674880.

The previous prime is 21151304971. The next prime is 21151305023. The reversal of 21151305010 is 1050315112.

It is a super-2 number, since 2×21151305010² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 543627 + ... + 581233.

It is an arithmetic number, because the mean of its divisors is an integer number (1298209356).

Almost surely, 2^21151305010 is an apocalyptic number.

21151305010 is a deficient number, since it is larger than the sum of its proper divisors (20391394382).

21151305010 is a wasteful number, since it uses less digits than its factorization.

21151305010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42738.

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 21151305010 in words is "twenty-one billion, one hundred fifty-one million, three hundred five thousand, ten".