222220121201 has 16 divisors (see below), whose sum is σ = 241567174464. Its totient is φ = 203203162944.

The previous prime is 222220121173. The next prime is 222220121239. The reversal of 222220121201 is 102121022222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222220121201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222220121201.

It is not an unprimeable number, because it can be changed into a prime (222220121261) 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 15 ways as a sum of consecutive naturals, for example, 479735 + ... + 821331.

It is an arithmetic number, because the mean of its divisors is an integer number (15097948404).

Almost surely, 2^222220121201 is an apocalyptic number.

It is an amenable number.

222220121201 is a deficient number, since it is larger than the sum of its proper divisors (19347053263).

222220121201 is a wasteful number, since it uses less digits than its factorization.

222220121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342080.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222220121201 its reverse (102121022222), we get a palindrome (324341143423).

The spelling of 222220121201 in words is "two hundred twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".