202124321220 has 48 divisors (see below), whose sum is σ = 585463556160. Its totient is φ = 52041204096.

The previous prime is 202124321207. The next prime is 202124321257. The reversal of 202124321220 is 22123421202.

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, 58079962 + ... + 58083441.

It is an arithmetic number, because the mean of its divisors is an integer number (12197157420).

Almost surely, 2^202124321220 is an apocalyptic number.

202124321220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202124321220 is an abundant number, since it is smaller than the sum of its proper divisors (383339234940).

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

202124321220 is a wasteful number, since it uses less digits than its factorization.

202124321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116163444 (or 116163442 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 202124321220 its reverse (22123421202), we get a palindrome (224247742422).

The spelling of 202124321220 in words is "two hundred two billion, one hundred twenty-four million, three hundred twenty-one thousand, two hundred twenty".