20001012012219 has 32 divisors (see below), whose sum is σ = 30559531968000. Its totient is φ = 11398491143424.

The previous prime is 20001012012199. The next prime is 20001012012271. The reversal of 20001012012219 is 91221021010002.

It is not a de Polignac number, because 20001012012219 - 2⁸ = 20001012011963 is a prime.

It is a super-2 number, since 2×20001012012219² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20001012012195 and 20001012012204.

It is not an unprimeable number, because it can be changed into a prime (20001012012299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29484447 + ... + 30155175.

It is an arithmetic number, because the mean of its divisors is an integer number (954985374000).

Almost surely, 2^{20001012012219} is an apocalyptic number.

20001012012219 is a deficient number, since it is larger than the sum of its proper divisors (10558519955781).

20001012012219 is a wasteful number, since it uses less digits than its factorization.

20001012012219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674547.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 20001012012219 in words is "twenty trillion, one billion, twelve million, twelve thousand, two hundred nineteen".