220021132113 has 10 divisors (see below), whose sum is σ = 328673543154. Its totient is φ = 146680754688.

The previous prime is 220021132109. The next prime is 220021132147. The reversal of 220021132113 is 311231120022.

It can be written as a sum of positive squares in only one way, i.e., 150445464129 + 69575667984 = 387873^2 + 263772^2 .

It is not a de Polignac number, because 220021132113 - 2² = 220021132109 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220021132213) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1358155056 + ... + 1358155217.

Almost surely, 2^220021132113 is an apocalyptic number.

It is an amenable number.

220021132113 is a deficient number, since it is larger than the sum of its proper divisors (108652411041).

220021132113 is an equidigital number, since it uses as much as digits as its factorization.

220021132113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716310285 (or 2716310276 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 220021132113 its reverse (311231120022), we get a palindrome (531252252135).

The spelling of 220021132113 in words is "two hundred twenty billion, twenty-one million, one hundred thirty-two thousand, one hundred thirteen".