220120010221201 has 4 divisors (see below), whose sum is σ = 220120961668900. Its totient is φ = 220119058773504.

The previous prime is 220120010221193. The next prime is 220120010221249. The reversal of 220120010221201 is 102122010021022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61533842611201 + 158586167610000 = 7844351^2 + 12593100^2 .

It is a cyclic number.

It is not a de Polignac number, because 220120010221201 - 2³ = 220120010221193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220120010221291) 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, 475376736 + ... + 475839553.

It is an arithmetic number, because the mean of its divisors is an integer number (55030240417225).

Almost surely, 2^{220120010221201} is an apocalyptic number.

It is an amenable number.

220120010221201 is a deficient number, since it is larger than the sum of its proper divisors (951447699).

220120010221201 is an equidigital number, since it uses as much as digits as its factorization.

220120010221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951447698.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220120010221201 its reverse (102122010021022), we get a palindrome (322242020242223).

The spelling of 220120010221201 in words is "two hundred twenty trillion, one hundred twenty billion, ten million, two hundred twenty-one thousand, two hundred one".