20022219 has 48 divisors (see below), whose sum is σ = 35692800. Its totient is φ = 10559808.

The previous prime is 20022203. The next prime is 20022229. The reversal of 20022219 is 91222002.

It is not a de Polignac number, because 20022219 - 2⁴ = 20022203 is a prime.

It is a super-2 number, since 2×20022219² = 801778507367922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20022229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51277 + ... + 51665.

It is an arithmetic number, because the mean of its divisors is an integer number (743600).

Almost surely, 2^20022219 is an apocalyptic number.

20022219 is a deficient number, since it is larger than the sum of its proper divisors (15670581).

20022219 is a wasteful number, since it uses less digits than its factorization.

20022219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20022219 is about 4474.6194251579. The cubic root of 20022219 is about 271.5422438668.

The spelling of 20022219 in words is "twenty million, twenty-two thousand, two hundred nineteen".