222222121020002 has 8 divisors (see below), whose sum is σ = 333334013348700. Its totient is φ = 111110783237104.

The previous prime is 222222121020001. The next prime is 222222121020083. The reversal of 222222121020002 is 200020121222222.

It can be written as a sum of positive squares in 2 ways, for example, as 162640564869721 + 59581556150281 = 12753061^2 + 7718909^2 .

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

It is not an unprimeable number, because it can be changed into a prime (222222121020001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137633177 + ... + 139238412.

Almost surely, 2^{222222121020002} is an apocalyptic number.

222222121020002 is a deficient number, since it is larger than the sum of its proper divisors (111111892328698).

222222121020002 is a wasteful number, since it uses less digits than its factorization.

222222121020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277272900.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222222121020002 its reverse (200020121222222), we get a palindrome (422242242242224).

The spelling of 222222121020002 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty thousand, two".