21000300292 has 12 divisors (see below), whose sum is σ = 36756792576. Its totient is φ = 10498359560.

The previous prime is 21000300289. The next prime is 21000300301. The reversal of 21000300292 is 29200300012.

It is a happy number.

It is a super-2 number, since 2×21000300292² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421084 + ... + 468307.

It is an arithmetic number, because the mean of its divisors is an integer number (3063066048).

Almost surely, 2^21000300292 is an apocalyptic number.

It is an amenable number.

21000300292 is a deficient number, since it is larger than the sum of its proper divisors (15756492284).

21000300292 is a wasteful number, since it uses less digits than its factorization.

21000300292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895298 (or 895296 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The spelling of 21000300292 in words is "twenty-one billion, three hundred thousand, two hundred ninety-two".