220101001121201 has 4 divisors (see below), whose sum is σ = 220101619171392. Its totient is φ = 220100383071012.

The previous prime is 220101001121189. The next prime is 220101001121203. The reversal of 220101001121201 is 102121100101022.

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 a de Polignac number, because none of the positive numbers 2^k-220101001121201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220101001121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308490605 + ... + 309203258.

It is an arithmetic number, because the mean of its divisors is an integer number (55025404792848).

Almost surely, 2^{220101001121201} is an apocalyptic number.

It is an amenable number.

220101001121201 is a deficient number, since it is larger than the sum of its proper divisors (618050191).

220101001121201 is an equidigital number, since it uses as much as digits as its factorization.

220101001121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618050190.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220101001121201 its reverse (102121100101022), we get a palindrome (322222101222223).

The spelling of 220101001121201 in words is "two hundred twenty trillion, one hundred one billion, one million, one hundred twenty-one thousand, two hundred one".