220001010121 has 8 divisors (see below), whose sum is σ = 220809345120. Its totient is φ = 219194155872.

The previous prime is 220001010071. The next prime is 220001010133. The reversal of 220001010121 is 121010100022.

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 220001010121 - 2¹³ = 220001001929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220001010098 and 220001010107.

It is not an unprimeable number, because it can be changed into a prime (220001010161) 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, 72055 + ... + 667228.

It is an arithmetic number, because the mean of its divisors is an integer number (27601168140).

Almost surely, 2^220001010121 is an apocalyptic number.

It is an amenable number.

220001010121 is a deficient number, since it is larger than the sum of its proper divisors (808334999).

220001010121 is an equidigital number, since it uses as much as digits as its factorization.

220001010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740375.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 220001010121 its reverse (121010100022), we get a palindrome (341011110143).

The spelling of 220001010121 in words is "two hundred twenty billion, one million, ten thousand, one hundred twenty-one".