2121002219 has 8 divisors (see below), whose sum is σ = 2480375040. Its totient is φ = 1775722536.

The previous prime is 2121002207. The next prime is 2121002249. The reversal of 2121002219 is 9122001212.

It is a happy number.

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

It is not a de Polignac number, because 2121002219 - 2⁸ = 2121001963 is a prime.

It is a super-2 number, since 2×2121002219² = 8997300826005847922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121002219.

It is not an unprimeable number, because it can be changed into a prime (2121002249) 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, 3522959 + ... + 3523560.

It is an arithmetic number, because the mean of its divisors is an integer number (310046880).

Almost surely, 2^2121002219 is an apocalyptic number.

2121002219 is a deficient number, since it is larger than the sum of its proper divisors (359372821).

2121002219 is an equidigital number, since it uses as much as digits as its factorization.

2121002219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7046569.

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

The square root of 2121002219 is about 46054.3398497905. The cubic root of 2121002219 is about 1284.8340601378.

The spelling of 2121002219 in words is "two billion, one hundred twenty-one million, two thousand, two hundred nineteen".