12222121010002 has 16 divisors (see below), whose sum is σ = 19518850397592. Its totient is φ = 5719809634560.

The previous prime is 12222121009993. The next prime is 12222121010039. The reversal of 12222121010002 is 20001012122221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10930422842161 + 1291698167841 = 3306119^2 + 1136529^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993016353 + ... + 993028660.

Almost surely, 2^{12222121010002} is an apocalyptic number.

12222121010002 is a deficient number, since it is larger than the sum of its proper divisors (7296729387590).

12222121010002 is a wasteful number, since it uses less digits than its factorization.

12222121010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986045213.

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

Adding to 12222121010002 its reverse (20001012122221), we get a palindrome (32223133132223).

The spelling of 12222121010002 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-one million, ten thousand, two".