222221021001201 has 12 divisors (see below), whose sum is σ = 329661214338612. Its totient is φ = 144143364973536.

The previous prime is 222221021001197. The next prime is 222221021001263. The reversal of 222221021001201 is 102100120122222.

It is a happy number.

222221021001201 is a `hidden beast` number, since 2 + 222 + 210 + 210 + 0 + 1 + 20 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 195148355141601 + 27072665859600 = 13969551^2 + 5203140^2 .

It is not a de Polignac number, because 222221021001201 - 2² = 222221021001197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222221021001281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333665196366 + ... + 333665197031.

It is an arithmetic number, because the mean of its divisors is an integer number (27471767861551).

Almost surely, 2^{222221021001201} is an apocalyptic number.

It is an amenable number.

222221021001201 is a deficient number, since it is larger than the sum of its proper divisors (107440193337411).

222221021001201 is a wasteful number, since it uses less digits than its factorization.

222221021001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667330393440 (or 667330393437 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222221021001201 its reverse (102100120122222), we get a palindrome (324321141123423).

It can be divided in two parts, 22222 and 1021001201, that multiplied together give a palindrome (22688688688622).

The spelling of 222221021001201 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-one million, one thousand, two hundred one".