202400020220 has 48 divisors (see below), whose sum is σ = 429555741888. Its totient is φ = 80101301760.

The previous prime is 202400020213. The next prime is 202400020283. The reversal of 202400020220 is 22020004202.

It is a junction number, because it is equal to n+sod(n) for n = 202400020195 and 202400020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2257040 + ... + 2345000.

It is an arithmetic number, because the mean of its divisors is an integer number (8949077956).

Almost surely, 2^202400020220 is an apocalyptic number.

202400020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202400020220 is an abundant number, since it is smaller than the sum of its proper divisors (227155721668).

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

202400020220 is a wasteful number, since it uses less digits than its factorization.

202400020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89190 (or 89188 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 202400020220 its reverse (22020004202), we get a palindrome (224420024422).

The spelling of 202400020220 in words is "two hundred two billion, four hundred million, twenty thousand, two hundred twenty".