2121219 has 12 divisors (see below), whose sum is σ = 3122496. Its totient is φ = 1387152.

The previous prime is 2121199. The next prime is 2121239. The reversal of 2121219 is 9121212.

It is an interprime number because it is at equal distance from previous prime (2121199) and next prime (2121239).

It is not a de Polignac number, because 2121219 - 2⁵ = 2121187 is a prime.

It is a super-2 number, since 2×2121219² = 8999140091922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121239) 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, 1747 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (260208).

2^2121219 is an apocalyptic number.

2121219 is a deficient number, since it is larger than the sum of its proper divisors (1001277).

2121219 is a wasteful number, since it uses less digits than its factorization.

2121219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506 (or 4503 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 2121219 is about 1456.4405240174. The cubic root of 2121219 is about 128.4877831603.

It can be divided in two parts, 212 and 1219, that added together give a triangular number (1431 = T₅₃).

The spelling of 2121219 in words is "two million, one hundred twenty-one thousand, two hundred nineteen".