220100210201 has 4 divisors (see below), whose sum is σ = 220666020900. Its totient is φ = 219534399504.

The previous prime is 220100210171. The next prime is 220100210243. The reversal of 220100210201 is 102012001022.

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 57833035225 + 162267174976 = 240485^2 + 402824^2 .

It is a cyclic number.

It is not a de Polignac number, because 220100210201 - 2¹⁰ = 220100209177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220100210401) 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, 282904766 + ... + 282905543.

It is an arithmetic number, because the mean of its divisors is an integer number (55166505225).

Almost surely, 2^220100210201 is an apocalyptic number.

It is an amenable number.

220100210201 is a deficient number, since it is larger than the sum of its proper divisors (565810699).

220100210201 is an equidigital number, since it uses as much as digits as its factorization.

220100210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565810698.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220100210201 its reverse (102012001022), we get a palindrome (322112211223).

The spelling of 220100210201 in words is "two hundred twenty billion, one hundred million, two hundred ten thousand, two hundred one".