220020112201221 has 12 divisors (see below), whose sum is σ = 317807607063648. Its totient is φ = 146679715572264.

The previous prime is 220020112201217. The next prime is 220020112201259. The reversal of 220020112201221 is 122102211020022.

It is a happy number.

220020112201221 is a `hidden beast` number, since 2 + 20 + 0 + 201 + 1 + 220 + 1 + 221 = 666.

It is not a de Polignac number, because 220020112201221 - 2² = 220020112201217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220020112201194 and 220020112201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020112201291) 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, 26029855 + ... + 33430428.

It is an arithmetic number, because the mean of its divisors is an integer number (26483967255304).

Almost surely, 2^{220020112201221} is an apocalyptic number.

It is an amenable number.

220020112201221 is a deficient number, since it is larger than the sum of its proper divisors (97787494862427).

220020112201221 is a wasteful number, since it uses less digits than its factorization.

220020112201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59871432 (or 59871429 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220020112201221 its reverse (122102211020022), we get a palindrome (342122323221243).

The spelling of 220020112201221 in words is "two hundred twenty trillion, twenty billion, one hundred twelve million, two hundred one thousand, two hundred twenty-one".