202022019 has 10 divisors (see below), whose sum is σ = 301786100. Its totient is φ = 134681292.

The previous prime is 202022011. The next prime is 202022021. The reversal of 202022019 is 910220202.

It is not a de Polignac number, because 202022019 - 2³ = 202022011 is a prime.

It is a super-2 number, since 2×202022019² = 81625792321672722, 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 = 202021992 and 202022010.

It is not an unprimeable number, because it can be changed into a prime (202022011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1246969 + ... + 1247130.

It is an arithmetic number, because the mean of its divisors is an integer number (30178610).

Almost surely, 2^202022019 is an apocalyptic number.

202022019 is a deficient number, since it is larger than the sum of its proper divisors (99764081).

202022019 is an equidigital number, since it uses as much as digits as its factorization.

202022019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494111 (or 2494102 counting only the distinct ones).

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

The square root of 202022019 is about 14213.4450081604. The cubic root of 202022019 is about 586.7677494916.

The spelling of 202022019 in words is "two hundred two million, twenty-two thousand, nineteen".