220212212021121 has 16 divisors (see below), whose sum is σ = 294031054391040. Its totient is φ = 146600764396800.

The previous prime is 220212212021119. The next prime is 220212212021129. The reversal of 220212212021121 is 121120212212022.

It is not a de Polignac number, because 220212212021121 - 2¹ = 220212212021119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220212212021129) 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 15 ways as a sum of consecutive naturals, for example, 100077081 + ... + 102253833.

It is an arithmetic number, because the mean of its divisors is an integer number (18376940899440).

Almost surely, 2^{220212212021121} is an apocalyptic number.

It is an amenable number.

220212212021121 is a deficient number, since it is larger than the sum of its proper divisors (73818842369919).

220212212021121 is a wasteful number, since it uses less digits than its factorization.

220212212021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224376.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220212212021121 its reverse (121120212212022), we get a palindrome (341332424233143).

The spelling of 220212212021121 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred twelve million, twenty-one thousand, one hundred twenty-one".