222101220211121 has 8 divisors (see below), whose sum is σ = 222206139450144. Its totient is φ = 221996311589920.

The previous prime is 222101220211099. The next prime is 222101220211181. The reversal of 222101220211121 is 121112022101222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222101220211121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222101220211093 and 222101220211102.

It is not an unprimeable number, because it can be changed into a prime (222101220211181) 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, 39347846 + ... + 44636928.

It is an arithmetic number, because the mean of its divisors is an integer number (27775767431268).

Almost surely, 2^{222101220211121} is an apocalyptic number.

It is an amenable number.

222101220211121 is a deficient number, since it is larger than the sum of its proper divisors (104919239023).

222101220211121 is a wasteful number, since it uses less digits than its factorization.

222101220211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308911.

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

Adding to 222101220211121 its reverse (121112022101222), we get a palindrome (343213242312343).

The spelling of 222101220211121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twenty million, two hundred eleven thousand, one hundred twenty-one".