202020220019 has 4 divisors (see below), whose sum is σ = 202021133496. Its totient is φ = 202019306544.

The previous prime is 202020220013. The next prime is 202020220063. The reversal of 202020220019 is 910022020202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 202020220019 - 2¹² = 202020215923 is a prime.

It is a super-2 number, since 2×202020220019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202020220013) 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, 106607 + ... + 644519.

It is an arithmetic number, because the mean of its divisors is an integer number (50505283374).

Almost surely, 2^202020220019 is an apocalyptic number.

202020220019 is a deficient number, since it is larger than the sum of its proper divisors (913477).

202020220019 is an equidigital number, since it uses as much as digits as its factorization.

202020220019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913476.

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

The spelling of 202020220019 in words is "two hundred two billion, twenty million, two hundred twenty thousand, nineteen".