220013201220221 has 4 divisors (see below), whose sum is σ = 220013560218432. Its totient is φ = 220012842222012.

The previous prime is 220013201220217. The next prime is 220013201220289. The reversal of 220013201220221 is 122022102310022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220013201220221 - 2² = 220013201220217 is a prime.

It is a super-2 number, since 2×220013201220221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220013201220193 and 220013201220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220013201220521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178578251 + ... + 179806056.

It is an arithmetic number, because the mean of its divisors is an integer number (55003390054608).

Almost surely, 2^{220013201220221} is an apocalyptic number.

It is an amenable number.

220013201220221 is a deficient number, since it is larger than the sum of its proper divisors (358998211).

220013201220221 is an equidigital number, since it uses as much as digits as its factorization.

220013201220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358998210.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 220013201220221 its reverse (122022102310022), we get a palindrome (342035303530243).

The spelling of 220013201220221 in words is "two hundred twenty trillion, thirteen billion, two hundred one million, two hundred twenty thousand, two hundred twenty-one".