220122100020201 has 4 divisors (see below), whose sum is σ = 293496133360272. Its totient is φ = 146748066680132.

The previous prime is 220122100020197. The next prime is 220122100020209. The reversal of 220122100020201 is 102020001221022.

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 220122100020201 - 2² = 220122100020197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220122100020209) 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, 36687016670031 + ... + 36687016670036.

It is an arithmetic number, because the mean of its divisors is an integer number (73374033340068).

Almost surely, 2^{220122100020201} is an apocalyptic number.

It is an amenable number.

220122100020201 is a deficient number, since it is larger than the sum of its proper divisors (73374033340071).

220122100020201 is an equidigital number, since it uses as much as digits as its factorization.

220122100020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73374033340070.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220122100020201 its reverse (102020001221022), we get a palindrome (322142101241223).

The spelling of 220122100020201 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred million, twenty thousand, two hundred one".