20010001021202 has 16 divisors (see below), whose sum is σ = 30054967491672. Its totient is φ = 9991678984320.

The previous prime is 20010001021201. The next prime is 20010001021211. The reversal of 20010001021202 is 20212010001002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 430429157041 + 19579571864161 = 656071^2 + 4424881^2 .

It is not an unprimeable number, because it can be changed into a prime (20010001021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169694288 + ... + 169812164.

Almost surely, 2^{20010001021202} is an apocalyptic number.

20010001021202 is a deficient number, since it is larger than the sum of its proper divisors (10044966470470).

20010001021202 is a wasteful number, since it uses less digits than its factorization.

20010001021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230173.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20010001021202 its reverse (20212010001002), we get a palindrome (40222011022204).

The spelling of 20010001021202 in words is "twenty trillion, ten billion, one million, twenty-one thousand, two hundred two".