10101001020201 has 48 divisors (see below), whose sum is σ = 18442668584704. Its totient is φ = 5184000508032.

The previous prime is 10101001020137. The next prime is 10101001020211. The reversal of 10101001020201 is 10202010010101.

It is a happy number.

It is not a de Polignac number, because 10101001020201 - 2⁶ = 10101001020137 is a prime.

It is a super-2 number, since 2×10101001020201² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

10101001020201 is a modest number, since divided by 1020201 gives 101010 as remainder.

It is not an unprimeable number, because it can be changed into a prime (10101001020211) 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 47 ways as a sum of consecutive naturals, for example, 166636381 + ... + 166696986.

Almost surely, 2^{10101001020201} is an apocalyptic number.

It is an amenable number.

10101001020201 is a deficient number, since it is larger than the sum of its proper divisors (8341667564503).

10101001020201 is a wasteful number, since it uses less digits than its factorization.

10101001020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333333430 (or 333333427 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10101001020201 its reverse (10202010010101), we get a palindrome (20303011030302).

The spelling of 10101001020201 in words is "ten trillion, one hundred one billion, one million, twenty thousand, two hundred one".