220211120021 has 8 divisors (see below), whose sum is σ = 223831173888. Its totient is φ = 216591390000.

The previous prime is 220211120011. The next prime is 220211120023. The reversal of 220211120021 is 120021112022.

220211120021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220211120021 - 2¹⁰ = 220211118997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220211119978 and 220211120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211120023) 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, 1561796 + ... + 1696946.

It is an arithmetic number, because the mean of its divisors is an integer number (27978896736).

Almost surely, 2^220211120021 is an apocalyptic number.

It is an amenable number.

220211120021 is a deficient number, since it is larger than the sum of its proper divisors (3620053867).

220211120021 is a wasteful number, since it uses less digits than its factorization.

220211120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161923.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220211120021 its reverse (120021112022), we get a palindrome (340232232043).

The spelling of 220211120021 in words is "two hundred twenty billion, two hundred eleven million, one hundred twenty thousand, twenty-one".