20019200201920 has 28 divisors (see below), whose sum is σ = 47670720481584. Its totient is φ = 8007680080640.

The previous prime is 20019200201879. The next prime is 20019200201971. The reversal of 20019200201920 is 2910200291002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31279999996 + ... + 31280000635.

Almost surely, 2^{20019200201920} is an apocalyptic number.

20019200201920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20019200201920 is an abundant number, since it is smaller than the sum of its proper divisors (27651520279664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20019200201920 is an equidigital number, since it uses as much as digits as its factorization.

20019200201920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62560000648 (or 62560000638 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 20019200201920 its reverse (2910200291002), we get a palindrome (22929400492922).

The spelling of 20019200201920 in words is "twenty trillion, nineteen billion, two hundred million, two hundred one thousand, nine hundred twenty".