220121000200221 has 8 divisors (see below), whose sum is σ = 303615172690080. Its totient is φ = 141687080588592.

The previous prime is 220121000200217. The next prime is 220121000200243. The reversal of 220121000200221 is 122002000121022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220121000200221 - 2² = 220121000200217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220121000200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121000200201) 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 7 ways as a sum of consecutive naturals, for example, 1265063219455 + ... + 1265063219628.

It is an arithmetic number, because the mean of its divisors is an integer number (37951896586260).

Almost surely, 2^{220121000200221} is an apocalyptic number.

It is an amenable number.

220121000200221 is a deficient number, since it is larger than the sum of its proper divisors (83494172489859).

220121000200221 is a wasteful number, since it uses less digits than its factorization.

220121000200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530126439115.

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

Adding to 220121000200221 its reverse (122002000121022), we get a palindrome (342123000321243).

The spelling of 220121000200221 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred thousand, two hundred twenty-one".