2012021219 has 12 divisors (see below), whose sum is σ = 2180610432. Its totient is φ = 1855620000.

The previous prime is 2012021203. The next prime is 2012021227. The reversal of 2012021219 is 9121202102.

It is a happy number.

It is not a de Polignac number, because 2012021219 - 2⁴ = 2012021203 is a prime.

It is a super-2 number, since 2×2012021219² = 8096458771412491922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2012021219.

It is not an unprimeable number, because it can be changed into a prime (2012021419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215294 + ... + 224444.

It is an arithmetic number, because the mean of its divisors is an integer number (181717536).

Almost surely, 2^2012021219 is an apocalyptic number.

2012021219 is a deficient number, since it is larger than the sum of its proper divisors (168589213).

2012021219 is a wasteful number, since it uses less digits than its factorization.

2012021219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478 (or 10465 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2012021219 is about 44855.5595104999. The cubic root of 2012021219 is about 1262.4403070035.

The spelling of 2012021219 in words is "two billion, twelve million, twenty-one thousand, two hundred nineteen".