221031201300 has 144 divisors (see below), whose sum is σ = 787097872512. Its totient is φ = 46635148800.

The previous prime is 221031201277. The next prime is 221031201301. The reversal of 221031201300 is 3102130122.

221031201300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221031201300² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 221031201300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221031201301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4020891 + ... + 4075490.

It is an arithmetic number, because the mean of its divisors is an integer number (5465957448).

Almost surely, 2^221031201300 is an apocalyptic number.

221031201300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221031201300 is an abundant number, since it is smaller than the sum of its proper divisors (566066671212).

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

221031201300 is a wasteful number, since it uses less digits than its factorization.

221031201300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096418 (or 8096411 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221031201300 its reverse (3102130122), we get a palindrome (224133331422).

The spelling of 221031201300 in words is "two hundred twenty-one billion, thirty-one million, two hundred one thousand, three hundred".