220202111121121 has 16 divisors (see below), whose sum is σ = 222931514348928. Its totient is φ = 217474535622400.

The previous prime is 220202111121089. The next prime is 220202111121149. The reversal of 220202111121121 is 121121111202022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220202111121121 - 2⁵ = 220202111121089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220202511121121) 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, 6811692660 + ... + 6811724986.

It is an arithmetic number, because the mean of its divisors is an integer number (13933219646808).

Almost surely, 2^{220202111121121} is an apocalyptic number.

It is an amenable number.

220202111121121 is a deficient number, since it is larger than the sum of its proper divisors (2729403227807).

220202111121121 is a wasteful number, since it uses less digits than its factorization.

220202111121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57992.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220202111121121 its reverse (121121111202022), we get a palindrome (341323222323143).

The spelling of 220202111121121 in words is "two hundred twenty trillion, two hundred two billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-one".