222101221002121 has 8 divisors (see below), whose sum is σ = 224286594041664. Its totient is φ = 219926534383920.

The previous prime is 222101221002043. The next prime is 222101221002151. The reversal of 222101221002121 is 121200122101222.

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 222101221002121 - 2⁷ = 222101221001993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222101221002151) 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, 2671563565 + ... + 2671646698.

It is an arithmetic number, because the mean of its divisors is an integer number (28035824255208).

Almost surely, 2^{222101221002121} is an apocalyptic number.

It is an amenable number.

222101221002121 is a deficient number, since it is larger than the sum of its proper divisors (2185373039543).

222101221002121 is a wasteful number, since it uses less digits than its factorization.

222101221002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343210671.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222101221002121 its reverse (121200122101222), we get a palindrome (343301343103343).

The spelling of 222101221002121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twenty-one million, two thousand, one hundred twenty-one".