220212122202001 has 4 divisors (see below), whose sum is σ = 220234363614004. Its totient is φ = 220189880790000.

The previous prime is 220212122201999. The next prime is 220212122202031. The reversal of 220212122202001 is 100202221212022.

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 182304409060225 + 37907713141776 = 13502015^2 + 6156924^2 .

It is a cyclic number.

It is not a de Polignac number, because 220212122202001 - 2¹ = 220212122201999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220212122202001.

It is not an unprimeable number, because it can be changed into a prime (220212122202031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11120691150 + ... + 11120710951.

It is an arithmetic number, because the mean of its divisors is an integer number (55058590903501).

Almost surely, 2^{220212122202001} is an apocalyptic number.

It is an amenable number.

220212122202001 is a deficient number, since it is larger than the sum of its proper divisors (22241412003).

220212122202001 is an equidigital number, since it uses as much as digits as its factorization.

220212122202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22241412002.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220212122202001 its reverse (100202221212022), we get a palindrome (320414343414023).

The spelling of 220212122202001 in words is "two hundred twenty trillion, two hundred twelve billion, one hundred twenty-two million, two hundred two thousand, one".