21133212299 has 16 divisors (see below), whose sum is σ = 21498867936. Its totient is φ = 20771251200.

The previous prime is 21133212277. The next prime is 21133212313. The reversal of 21133212299 is 99221233112.

It is a cyclic number.

It is not a de Polignac number, because 21133212299 - 2⁸ = 21133212043 is a prime.

It is a super-2 number, since 2×21133212299² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21133212899) 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 15 ways as a sum of consecutive naturals, for example, 10476539 + ... + 10478555.

It is an arithmetic number, because the mean of its divisors is an integer number (1343679246).

Almost surely, 2^21133212299 is an apocalyptic number.

21133212299 is a deficient number, since it is larger than the sum of its proper divisors (365655637).

21133212299 is a wasteful number, since it uses less digits than its factorization.

21133212299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846.

The product of its digits is 11664, while the sum is 35.

The spelling of 21133212299 in words is "twenty-one billion, one hundred thirty-three million, two hundred twelve thousand, two hundred ninety-nine".