220221314312 has 32 divisors (see below), whose sum is σ = 415438829400. Its totient is φ = 109439299584.

The previous prime is 220221314251. The next prime is 220221314317. The reversal of 220221314312 is 213413122022.

It can be written as a sum of positive squares in 4 ways, for example, as 219617825956 + 603488356 = 468634^2 + 24566^2 .

It is not an unprimeable number, because it can be changed into a prime (220221314317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952898 + ... + 1161230.

Almost surely, 2^220221314312 is an apocalyptic number.

It is an amenable number.

220221314312 is a deficient number, since it is larger than the sum of its proper divisors (195217515088).

220221314312 is a wasteful number, since it uses less digits than its factorization.

220221314312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209145 (or 209141 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 220221314312 its reverse (213413122022), we get a palindrome (433634436334).

The spelling of 220221314312 in words is "two hundred twenty billion, two hundred twenty-one million, three hundred fourteen thousand, three hundred twelve".