220220211200121 has 16 divisors (see below), whose sum is σ = 355911452445120. Its totient is φ = 133466794666560.

The previous prime is 220220211200053. The next prime is 220220211200173. The reversal of 220220211200121 is 121002112022022.

It is a happy number.

220220211200121 is a `hidden beast` number, since 2 + 20 + 220 + 211 + 200 + 12 + 1 = 666.

It is not a de Polignac number, because 220220211200121 - 2²⁷ = 220220076982393 is a prime.

It is a super-2 number, since 2×220220211200121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220220211200094 and 220220211200103.

It is not an unprimeable number, because it can be changed into a prime (220220211200621) 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, 370741096000 + ... + 370741096593.

It is an arithmetic number, because the mean of its divisors is an integer number (22244465777820).

Almost surely, 2^{220220211200121} is an apocalyptic number.

It is an amenable number.

220220211200121 is a deficient number, since it is larger than the sum of its proper divisors (135691241244999).

220220211200121 is a wasteful number, since it uses less digits than its factorization.

220220211200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741482192613 (or 741482192607 counting only the distinct ones).

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

Adding to 220220211200121 its reverse (121002112022022), we get a palindrome (341222323222143).

The spelling of 220220211200121 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred eleven million, two hundred thousand, one hundred twenty-one".