220120000210121 has 16 divisors (see below), whose sum is σ = 241346333030400. Its totient is φ = 199096846208400.

The previous prime is 220120000210093. The next prime is 220120000210133. The reversal of 220120000210121 is 121012000021022.

It is a cyclic number.

It is not a de Polignac number, because 220120000210121 - 2¹⁸ = 220119999947977 is a prime.

It is a super-3 number, since 3×220120000210121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220120000210096 and 220120000210105.

It is not an unprimeable number, because it can be changed into a prime (220120000210321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7964141 + ... + 22442538.

It is an arithmetic number, because the mean of its divisors is an integer number (15084145814400).

Almost surely, 2^{220120000210121} is an apocalyptic number.

It is an amenable number.

220120000210121 is a deficient number, since it is larger than the sum of its proper divisors (21226332820279).

220120000210121 is a wasteful number, since it uses less digits than its factorization.

220120000210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30410020.

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

Adding to 220120000210121 its reverse (121012000021022), we get a palindrome (341132000231143).

The spelling of 220120000210121 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred ten thousand, one hundred twenty-one".