20012120201219 has 4 divisors (see below), whose sum is σ = 20057294287896. Its totient is φ = 19966946114544.

The previous prime is 20012120201201. The next prime is 20012120201221. The reversal of 20012120201219 is 91210202121002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20012120201219 - 2²⁰ = 20012119152643 is a prime.

It is a super-2 number, since 2×20012120201219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012120201194 and 20012120201203.

It is not an unprimeable number, because it can be changed into a prime (20012120201279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22587042674 + ... + 22587043559.

It is an arithmetic number, because the mean of its divisors is an integer number (5014323571974).

Almost surely, 2^{20012120201219} is an apocalyptic number.

20012120201219 is a deficient number, since it is larger than the sum of its proper divisors (45174086677).

20012120201219 is an equidigital number, since it uses as much as digits as its factorization.

20012120201219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45174086676.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20012120201219 in words is "twenty trillion, twelve billion, one hundred twenty million, two hundred one thousand, two hundred nineteen".