20212511329999 has 8 divisors (see below), whose sum is σ = 20497530332160. Its totient is φ = 19927501654200.

The previous prime is 20212511329909. The next prime is 20212511330017. The reversal of 20212511329999 is 99992311521202.

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

It is a cyclic number.

It is not a de Polignac number, because 20212511329999 - 2¹⁷ = 20212511198927 is a prime.

It is a super-2 number, since 2×20212511329999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212511329909) 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, 2092222 + ... + 6693460.

It is an arithmetic number, because the mean of its divisors is an integer number (2562191291520).

Almost surely, 2^{20212511329999} is an apocalyptic number.

20212511329999 is a deficient number, since it is larger than the sum of its proper divisors (285019002161).

20212511329999 is an equidigital number, since it uses as much as digits as its factorization.

20212511329999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663181.

The product of its (nonzero) digits is 1574640, while the sum is 55.

The spelling of 20212511329999 in words is "twenty trillion, two hundred twelve billion, five hundred eleven million, three hundred twenty-nine thousand, nine hundred ninety-nine".