221202322300020 has 48 divisors (see below), whose sum is σ = 619367363112960. Its totient is φ = 58987203977856.

The previous prime is 221202322300009. The next prime is 221202322300021. The reversal of 221202322300020 is 20003223202122.

221202322300020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221202322300020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221202322300021) 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, 49833229 + ... + 54090251.

It is an arithmetic number, because the mean of its divisors is an integer number (12903486731520).

Almost surely, 2^{221202322300020} is an apocalyptic number.

221202322300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221202322300020 is an abundant number, since it is smaller than the sum of its proper divisors (398165040812940).

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

221202322300020 is a wasteful number, since it uses less digits than its factorization.

221202322300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123064 (or 5123062 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 221202322300020 its reverse (20003223202122), we get a palindrome (241205545502142).

The spelling of 221202322300020 in words is "two hundred twenty-one trillion, two hundred two billion, three hundred twenty-two million, three hundred thousand, twenty".