222040019 has 4 divisors (see below), whose sum is σ = 222087360. Its totient is φ = 221992680.

The previous prime is 222040001. The next prime is 222040057. The reversal of 222040019 is 910040222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222040019 - 2²⁰ = 220991443 is a prime.

It is a super-2 number, since 2×222040019² = 98603540075040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222000019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15752 + ... + 26309.

It is an arithmetic number, because the mean of its divisors is an integer number (55521840).

Almost surely, 2^222040019 is an apocalyptic number.

222040019 is a deficient number, since it is larger than the sum of its proper divisors (47341).

222040019 is an equidigital number, since it uses as much as digits as its factorization.

222040019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47340.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 222040019 is about 14901.0073149435. The cubic root of 222040019 is about 605.5412763996.

The spelling of 222040019 in words is "two hundred twenty-two million, forty thousand, nineteen".