221202212101121 has 8 divisors (see below), whose sum is σ = 221656289279040. Its totient is φ = 220748588323312.

The previous prime is 221202212101067. The next prime is 221202212101153. The reversal of 221202212101121 is 121101212202122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221202212101121 - 2¹⁸ = 221202211838977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221202212101093 and 221202212101102.

It is not an unprimeable number, because it can be changed into a prime (221202212101021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112373270 + ... + 114324783.

It is an arithmetic number, because the mean of its divisors is an integer number (27707036159880).

Almost surely, 2^{221202212101121} is an apocalyptic number.

It is an amenable number.

221202212101121 is a deficient number, since it is larger than the sum of its proper divisors (454077177919).

221202212101121 is a wasteful number, since it uses less digits than its factorization.

221202212101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226700055.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221202212101121 its reverse (121101212202122), we get a palindrome (342303424303243).

The spelling of 221202212101121 in words is "two hundred twenty-one trillion, two hundred two billion, two hundred twelve million, one hundred one thousand, one hundred twenty-one".