2100021219 has 6 divisors (see below), whose sum is σ = 3033363996. Its totient is φ = 1400014140.

The previous prime is 2100021181. The next prime is 2100021281. The reversal of 2100021219 is 9121200012.

It is not a de Polignac number, because 2100021219 - 2²⁴ = 2083244003 is a prime.

It is a super-2 number, since 2×2100021219² = 8820178240500491922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100021299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116667837 + ... + 116667854.

It is an arithmetic number, because the mean of its divisors is an integer number (505560666).

Almost surely, 2^2100021219 is an apocalyptic number.

2100021219 is a deficient number, since it is larger than the sum of its proper divisors (933342777).

2100021219 is a wasteful number, since it uses less digits than its factorization.

2100021219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233335697 (or 233335694 counting only the distinct ones).

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

The square root of 2100021219 is about 45825.9884672442. The cubic root of 2100021219 is about 1280.5834780856.

The spelling of 2100021219 in words is "two billion, one hundred million, twenty-one thousand, two hundred nineteen".