220200121021 has 8 divisors (see below), whose sum is σ = 225516526400. Its totient is φ = 214892600832.

The previous prime is 220200120991. The next prime is 220200121079. The reversal of 220200121021 is 120121002022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220200121021 - 2¹⁵ = 220200088253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220200120992 and 220200121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220200128021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171121 + ... + 2270278.

It is an arithmetic number, because the mean of its divisors is an integer number (28189565800).

Almost surely, 2^220200121021 is an apocalyptic number.

It is an amenable number.

220200121021 is a deficient number, since it is larger than the sum of its proper divisors (5316405379).

220200121021 is a wasteful number, since it uses less digits than its factorization.

220200121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442595.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220200121021 its reverse (120121002022), we get a palindrome (340321123043).

The spelling of 220200121021 in words is "two hundred twenty billion, two hundred million, one hundred twenty-one thousand, twenty-one".