202113201220 has 48 divisors (see below), whose sum is σ = 485151141888. Its totient is φ = 69284603520.

The previous prime is 202113201211. The next prime is 202113201221. The reversal of 202113201220 is 22102311202.

It is a happy number.

It is a super-2 number, since 2×202113201220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202113201194 and 202113201203.

It is not an unprimeable number, because it can be changed into a prime (202113201221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762834 + ... + 993046.

It is an arithmetic number, because the mean of its divisors is an integer number (10107315456).

Almost surely, 2^202113201220 is an apocalyptic number.

202113201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202113201220 is an abundant number, since it is smaller than the sum of its proper divisors (283037940668).

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

202113201220 is a wasteful number, since it uses less digits than its factorization.

202113201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236500 (or 236498 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 202113201220 its reverse (22102311202), we get a palindrome (224215512422).

The spelling of 202113201220 in words is "two hundred two billion, one hundred thirteen million, two hundred one thousand, two hundred twenty".