220122202200121 has 16 divisors (see below), whose sum is σ = 238426943734224. Its totient is φ = 202013518212864.

The previous prime is 220122202200119. The next prime is 220122202200133. The reversal of 220122202200121 is 121002202221022.

It can be written as a sum of positive squares in 8 ways, for example, as 270411440121 + 219851790760000 = 520011^2 + 14827400^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122202200121 - 2¹ = 220122202200119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220122202200101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323599455 + ... + 324278971.

It is an arithmetic number, because the mean of its divisors is an integer number (14901683983389).

Almost surely, 2^{220122202200121} is an apocalyptic number.

It is an amenable number.

220122202200121 is a deficient number, since it is larger than the sum of its proper divisors (18304741534103).

220122202200121 is a wasteful number, since it uses less digits than its factorization.

220122202200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823740.

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

Adding to 220122202200121 its reverse (121002202221022), we get a palindrome (341124404421143).

The spelling of 220122202200121 in words is "two hundred twenty trillion, one hundred twenty-two billion, two hundred two million, two hundred thousand, one hundred twenty-one".