220020120210121 has 16 divisors (see below), whose sum is σ = 274314505795200. Its totient is φ = 171441932906880.

The previous prime is 220020120210119. The next prime is 220020120210139. The reversal of 220020120210121 is 121012021020022.

It is a happy number.

220020120210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220020120210121 - 2¹ = 220020120210119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220020120210095 and 220020120210104.

It is not an unprimeable number, because it can be changed into a prime (220020120210101) 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, 13558516 + ... + 24977461.

It is an arithmetic number, because the mean of its divisors is an integer number (17144656612200).

Almost surely, 2^{220020120210121} is an apocalyptic number.

It is an amenable number.

220020120210121 is a deficient number, since it is larger than the sum of its proper divisors (54294385585079).

220020120210121 is a wasteful number, since it uses less digits than its factorization.

220020120210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38610144.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220020120210121 its reverse (121012021020022), we get a palindrome (341032141230143).

The spelling of 220020120210121 in words is "two hundred twenty trillion, twenty billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-one".