2112021121219 has 4 divisors (see below), whose sum is σ = 2117061744840. Its totient is φ = 2106980497600.

The previous prime is 2112021121169. The next prime is 2112021121291. The reversal of 2112021121219 is 9121211202112.

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 2112021121219 - 2²⁹ = 2111484250307 is a prime.

It is a super-2 number, since 2×2112021121219² (a number of 25 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 = 2112021121193 and 2112021121202.

It is not an unprimeable number, because it can be changed into a prime (2112021121019) 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, 2520311182 + ... + 2520312019.

It is an arithmetic number, because the mean of its divisors is an integer number (529265436210).

Almost surely, 2^{2112021121219} is an apocalyptic number.

2112021121219 is a deficient number, since it is larger than the sum of its proper divisors (5040623621).

2112021121219 is an equidigital number, since it uses as much as digits as its factorization.

2112021121219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040623620.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 2112021121219 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred nineteen".