220404224331 has 12 divisors (see below), whose sum is σ = 319201666680. Its totient is φ = 146548452960.

The previous prime is 220404224317. The next prime is 220404224353. The reversal of 220404224331 is 133422404022.

220404224331 is a `hidden beast` number, since 2 + 2 + 0 + 404 + 224 + 3 + 31 = 666.

It is not a de Polignac number, because 220404224331 - 2¹³ = 220404216139 is a prime.

It is a super-2 number, since 2×220404224331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220404224295 and 220404224304.

It is not an unprimeable number, because it can be changed into a prime (220404223331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32304450 + ... + 32311271.

It is an arithmetic number, because the mean of its divisors is an integer number (26600138890).

Almost surely, 2^220404224331 is an apocalyptic number.

220404224331 is a deficient number, since it is larger than the sum of its proper divisors (98797442349).

220404224331 is a wasteful number, since it uses less digits than its factorization.

220404224331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64616106 (or 64616103 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 220404224331 its reverse (133422404022), we get a palindrome (353826628353).

The spelling of 220404224331 in words is "two hundred twenty billion, four hundred four million, two hundred twenty-four thousand, three hundred thirty-one".