21021201210299 has 8 divisors (see below), whose sum is σ = 21937623315360. Its totient is φ = 20104983841536.

The previous prime is 21021201210239. The next prime is 21021201210323. The reversal of 21021201210299 is 99201210212012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21021201210299 is a prime.

It is a super-2 number, since 2×21021201210299² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21021201210239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50974232 + ... + 51384965.

It is an arithmetic number, because the mean of its divisors is an integer number (2742202914420).

Almost surely, 2^{21021201210299} is an apocalyptic number.

21021201210299 is a deficient number, since it is larger than the sum of its proper divisors (916422105061).

21021201210299 is a wasteful number, since it uses less digits than its factorization.

21021201210299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102368149.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 21021201210299 in words is "twenty-one trillion, twenty-one billion, two hundred one million, two hundred ten thousand, two hundred ninety-nine".