220120120022121 has 12 divisors (see below), whose sum is σ = 346855946701680. Its totient is φ = 133406133346680.

The previous prime is 220120120022059. The next prime is 220120120022123. The reversal of 220120120022121 is 121220021021022.

It is a happy number.

220120120022121 is a `hidden beast` number, since 2 + 20 + 1 + 201 + 200 + 221 + 21 = 666.

220120120022121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220120120022121 - 2³¹ = 220117972538473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220120120022094 and 220120120022103.

It is not an unprimeable number, because it can be changed into a prime (220120120022123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1111717777791 + ... + 1111717777988.

It is an arithmetic number, because the mean of its divisors is an integer number (28904662225140).

Almost surely, 2^{220120120022121} is an apocalyptic number.

It is an amenable number.

220120120022121 is a deficient number, since it is larger than the sum of its proper divisors (126735826679559).

220120120022121 is a wasteful number, since it uses less digits than its factorization.

220120120022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223435555796 (or 2223435555793 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220120120022121 its reverse (121220021021022), we get a palindrome (341340141043143).

The spelling of 220120120022121 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty million, twenty-two thousand, one hundred twenty-one".