221022221101121 has 8 divisors (see below), whose sum is σ = 243456074082624. Its totient is φ = 198978522084720.

The previous prime is 221022221101117. The next prime is 221022221101127. The reversal of 221022221101121 is 121101122220122.

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 221022221101121 - 2² = 221022221101117 is a prime.

It is a super-3 number, since 3×221022221101121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221022221101093 and 221022221101102.

It is not an unprimeable number, because it can be changed into a prime (221022221101127) 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 7 ways as a sum of consecutive naturals, for example, 97538490086 + ... + 97538492351.

It is an arithmetic number, because the mean of its divisors is an integer number (30432009260328).

Almost surely, 2^{221022221101121} is an apocalyptic number.

It is an amenable number.

221022221101121 is a deficient number, since it is larger than the sum of its proper divisors (22433852981503).

221022221101121 is a wasteful number, since it uses less digits than its factorization.

221022221101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195076982551.

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

Adding to 221022221101121 its reverse (121101122220122), we get a palindrome (342123343321243).

The spelling of 221022221101121 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty-one".