201222019 has 4 divisors (see below), whose sum is σ = 201254296. Its totient is φ = 201189744.

The previous prime is 201222011. The next prime is 201222029. The reversal of 201222019 is 910222102.

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 201222019 - 2³ = 201222011 is a prime.

It is a super-2 number, since 2×201222019² = 80980601860872722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201221987 and 201222005.

It is not an unprimeable number, because it can be changed into a prime (201222011) 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, 3474 + ... + 20359.

It is an arithmetic number, because the mean of its divisors is an integer number (50313574).

Almost surely, 2^201222019 is an apocalyptic number.

201222019 is a deficient number, since it is larger than the sum of its proper divisors (32277).

201222019 is an equidigital number, since it uses as much as digits as its factorization.

201222019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32276.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 201222019 is about 14185.2747241638. The cubic root of 201222019 is about 585.9921984075.

The spelling of 201222019 in words is "two hundred one million, two hundred twenty-two thousand, nineteen".