220200122012121 has 20 divisors (see below), whose sum is σ = 330910629151872. Its totient is φ = 145921038929208.

The previous prime is 220200122012069. The next prime is 220200122012159. The reversal of 220200122012121 is 121210221002022.

It is a happy number.

220200122012121 is a `hidden beast` number, since 220 + 20 + 0 + 12 + 201 + 212 + 1 = 666.

It is not a de Polignac number, because 220200122012121 - 2³¹ = 220197974528473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220200122012094 and 220200122012103.

It is not an unprimeable number, because it can be changed into a prime (220200122012821) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8139267985 + ... + 8139295038.

Almost surely, 2^{220200122012121} is an apocalyptic number.

It is an amenable number.

220200122012121 is a deficient number, since it is larger than the sum of its proper divisors (110710507139751).

220200122012121 is a wasteful number, since it uses less digits than its factorization.

220200122012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16278563202 (or 16278563193 counting only the distinct ones).

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

Adding to 220200122012121 its reverse (121210221002022), we get a palindrome (341410343014143).

The spelling of 220200122012121 in words is "two hundred twenty trillion, two hundred billion, one hundred twenty-two million, twelve thousand, one hundred twenty-one".