2204121122121 has 32 divisors (see below), whose sum is σ = 3012571077120. Its totient is φ = 1432667424384.

The previous prime is 2204121122111. The next prime is 2204121122171. The reversal of 2204121122121 is 1212211214022.

It is a de Polignac number, because none of the positive numbers 2^k-2204121122121 is a prime.

It is a super-3 number, since 3×2204121122121³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2204121122111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229902490 + ... + 229912076.

It is an arithmetic number, because the mean of its divisors is an integer number (94142846160).

Almost surely, 2^{2204121122121} is an apocalyptic number.

It is an amenable number.

2204121122121 is a deficient number, since it is larger than the sum of its proper divisors (808449954999).

2204121122121 is a wasteful number, since it uses less digits than its factorization.

2204121122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12645.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 2204121122121 its reverse (1212211214022), we get a palindrome (3416332336143).

The spelling of 2204121122121 in words is "two trillion, two hundred four billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-one".