222102201121 has 2 divisors, whose sum is σ = 222102201122. Its totient is φ = 222102201120.

The previous prime is 222102201119. The next prime is 222102201149. The reversal of 222102201121 is 121102201222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220936661521 + 1165539600 = 470039^2 + 34140^2 .

It is a cyclic number.

It is not a de Polignac number, because 222102201121 - 2¹ = 222102201119 is a prime.

Together with 222102201119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 222102201095 and 222102201104.

It is not a weakly prime, because it can be changed into another prime (222102201221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111051100560 + 111051100561.

It is an arithmetic number, because the mean of its divisors is an integer number (111051100561).

Almost surely, 2^222102201121 is an apocalyptic number.

It is an amenable number.

222102201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222102201121 is an equidigital number, since it uses as much as digits as its factorization.

222102201121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222102201121 its reverse (121102201222), we get a palindrome (343204402343).

The spelling of 222102201121 in words is "two hundred twenty-two billion, one hundred two million, two hundred one thousand, one hundred twenty-one".