221433301224220 has 24 divisors (see below), whose sum is σ = 465624212566464. Its totient is φ = 88456314776256.

The previous prime is 221433301224199. The next prime is 221433301224277. The reversal of 221433301224220 is 22422103334122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7312841572 + ... + 7312871851.

It is an arithmetic number, because the mean of its divisors is an integer number (19401008856936).

Almost surely, 2^{221433301224220} is an apocalyptic number.

221433301224220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221433301224220 is an abundant number, since it is smaller than the sum of its proper divisors (244190911342244).

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

221433301224220 is a wasteful number, since it uses less digits than its factorization.

221433301224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14625714189 (or 14625714187 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 221433301224220 its reverse (22422103334122), we get a palindrome (243855404558342).

The spelling of 221433301224220 in words is "two hundred twenty-one trillion, four hundred thirty-three billion, three hundred one million, two hundred twenty-four thousand, two hundred twenty".