221313331133220 has 48 divisors (see below), whose sum is σ = 619678983631680. Its totient is φ = 59016730544256.

The previous prime is 221313331133201. The next prime is 221313331133357. The reversal of 221313331133220 is 22331133313122.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 18633786 + ... + 28104174.

It is an arithmetic number, because the mean of its divisors is an integer number (12909978825660).

Almost surely, 2^{221313331133220} is an apocalyptic number.

221313331133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221313331133220 is an abundant number, since it is smaller than the sum of its proper divisors (398365652498460).

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

221313331133220 is a wasteful number, since it uses less digits than its factorization.

221313331133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9859884 (or 9859882 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 221313331133220 its reverse (22331133313122), we get a palindrome (243644464446342).

The spelling of 221313331133220 in words is "two hundred twenty-one trillion, three hundred thirteen billion, three hundred thirty-one million, one hundred thirty-three thousand, two hundred twenty".