20102021100010 has 16 divisors (see below), whose sum is σ = 36188444017800. Its totient is φ = 8039740431616.

The previous prime is 20102021099903. The next prime is 20102021100011. The reversal of 20102021100010 is 1000112020102.

It can be written as a sum of positive squares in 4 ways, for example, as 10082447532369 + 10019573567641 = 3175287^2 + 3165371^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 20102021100010.

It is not an unprimeable number, because it can be changed into a prime (20102021100011) 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 7 ways as a sum of consecutive naturals, for example, 133421995 + ... + 133572574.

Almost surely, 2^{20102021100010} is an apocalyptic number.

20102021100010 is a deficient number, since it is larger than the sum of its proper divisors (16086422917790).

20102021100010 is a wasteful number, since it uses less digits than its factorization.

20102021100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267002105.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20102021100010 its reverse (1000112020102), we get a palindrome (21102133120112).

The spelling of 20102021100010 in words is "twenty trillion, one hundred two billion, twenty-one million, one hundred thousand, ten".